ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

Abstract

An organic electroluminescence device includes an anode, a cathode, an emitting layer between the anode and the cathode, a first electron transporting layer between the cathode and the emitting layer, and a second electron transporting layer between the cathode and the first electron transporting layer. The first electron transporting layer is directly adjacent to the emitting layer, the second electron transporting layer is directly adjacent to the first electron transporting layer, the emitting layer contains a first compound represented by Formula (1) below, the first compound has at least one group represented by Formula (11) below, the first electron transporting layer contains a second compound represented by Formula (2) below, and the second electron transporting layer contains a third compound represented by Formula (3) below.

##STR00001##

Claims

1. An organic electroluminescence device comprising: an anode; a cathode; an emitting layer between the anode and the cathode; a first electron transporting layer between the cathode and the emitting layer; and a second electron transporting layer between the cathode and the first electron transporting layer, wherein the first electron transporting layer is directly adjacent to the emitting layer, the second electron transporting layer is directly adjacent to the first electron transporting layer, the emitting layer comprises a first compound represented by Formula (1) below, the first compound has at least one group represented by Formula (11) below, the first electron transporting layer comprises a second compound represented by Formula (2) below, and the second electron transporting layer comprises a third compound represented by Formula (3) below, ##STR00567## in Formula (1), R.sub.101 to R.sub.110 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by Formula (11), at least one of R.sub.101 to R.sub.110 is a group represented by Formula (11), when a plurality of groups represented by Formula (11) are present, the plurality of groups represented by Formula (11) are mutually the same or different, L.sub.101 is a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar.sub.101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx is 0, 1, 2, 3, 4, or 5, when two or more L.sub.101 are present, the two or more L.sub.101 are mutually the same or different, when two or more Ar.sub.101 are present, the two or more Ar.sub.101 are mutually the same or different, and * in Formula (11) represents a bonding position to a pyrene ring in Formula (1), ##STR00568## in Formula (2), R.sub.201 to R.sub.208 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L.sub.201 and L.sub.202 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, and Ar.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, ##STR00569## in Formula (3), Z.sub.31, Z.sub.32, and Z.sub.33 each independently represent a nitrogen atom or CR.sub.3, two or three of Z.sub.31, Z.sub.32, and Z.sub.33 are each a nitrogen atom, R.sub.3 is a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, A is a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 13 ring atoms, B is a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 13 ring atoms, L is a single bond, a substituted or unsubstituted (n+1)-valent aromatic hydrocarbon ring group having 6 to 18 ring carbon atoms, a substituted or unsubstituted (n+1)-valent heterocyclic group having 5 to 13 ring atoms, or an (n+1)-valent group having a structure in which two or more mutually different substituted or unsubstituted aromatic hydrocarbon rings are bonded to each other, C is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 60 ring atoms, n is 1, 2, or 3, when n is 2 or more, L is not a single bond, and when n is 2 or more, a plurality of C are mutually the same or different, in the first compound represented by Formula (1), the second compound represented by Formula (2), and the third compound represented by Formula (3), R.sub.901, R.sub.902, R.sub.903, R.sub.904, R.sub.905, R.sub.906, R.sub.907, R.sub.801, and R.sub.802 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, when a plurality of R.sub.901 are present, the plurality of R.sub.901 are mutually the same or different, when a plurality of R.sub.902 are present, the plurality of R.sub.902 are mutually the same or different, when a plurality of R.sub.903 are present, the plurality of R.sub.903 are mutually the same or different, when a plurality of R.sub.904 are present, the plurality of R.sub.904 are mutually the same or different, when a plurality of R.sub.905 are present, the plurality of R.sub.905 are mutually the same or different, when a plurality of R.sub.906 are present, the plurality of R.sub.906 are mutually the same or different, when a plurality of R.sub.907 are present, the plurality of R.sub.907 are mutually the same or different, when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different, and when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different.

2-4. (canceled)

5. The organic electroluminescence device according to claim 1, wherein the emitting layer comprises a first emitting layer and a second emitting layer between the first emitting layer and the first electron transporting layer, the second emitting layer is directly adjacent to the first electron transporting layer, and the first emitting layer comprises the first compound represented by Formula (1).

6. The organic electroluminescence device according to claim 5, wherein the second emitting layer comprises a fifth compound, and the fifth compound is an anthracene derivative.

7. The organic electroluminescence device according to claim 5, wherein the second emitting layer comprises a fifth compound, the fifth compound is a compound represented by Formula (2), and the second and fifth compounds are mutually the same or different.

8. The organic electroluminescence device according to claim 1, wherein the first electron transporting layer consists of the second compound.

9. The organic electroluminescence device according to claim 1, wherein the second electron transporting layer consists of the third compound.

10. The organic electroluminescence device according to claim 1, wherein the group represented by Formula (11) is a group represented by Formula (111) below, ##STR00570## in Formula (111), X.sub.1 is CR.sub.123R.sub.124, an oxygen atom, a sulfur atom, or NR.sub.125, L.sub.111 and L.sub.112 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, ma is 0, 1, 2, 3, or 4, mb is 0, 1, 2, 3, or 4, ma+mb is 0, 1, 2, 3, or 4, Ar.sub.101 represents the same as Ar.sub.101 in Formula (11), R.sub.121, R.sub.122, R.sub.123, R.sub.124, and R.sub.125 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mc is 3, three R.sub.121 are mutually the same or different, md is 3; and three R.sub.122 are mutually the same or different.

11. The organic electroluminescence device according to claim 10, wherein ma is 0, 1, or 2, and mb is 0, 1, or 2.

12. (canceled)

13. The organic electroluminescence device according to claim 1, wherein A.sub.101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

14. The organic electroluminescence device according to claim 1, wherein Ar.sub.101 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted phenanthryl group, or a substituted or unsubstituted fluorenyl group.

15. (canceled)

16. The organic electroluminescence device according to claim 1, wherein L.sub.101 is a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

17-19. (canceled)

20. The organic electroluminescence device according to claim 1, wherein two or more of R.sub.101 to R.sub.110 are each a group represented by Formula (11).

21. (canceled)

22. The organic electroluminescence device according to claim 20, wherein Ar.sub.101 is not a substituted or unsubstituted pyrenyl group, L.sub.101 is not a substituted or unsubstituted pyrenylene group, and the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms for R.sub.101 to Rim not being the group represented by Formula (11) is not a substituted or unsubstituted pyrenyl group.

23. The organic electroluminescence device according to claim 1, wherein R.sub.101 to R.sub.110 not being the group represented by Formula (11) each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

24. The organic electroluminescence device according to claim 1, wherein R.sub.101 to R.sub.110 not being the group represented by Formula (11) each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms.

25. The organic electroluminescence device according to claim 1, wherein R.sub.101 to R.sub.110 not being the group represented by Formula (11) each represent a hydrogen atom.

26. The organic electroluminescence device according to claim 1, wherein R.sub.201 to R.sub.208 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, or a nitro group, L.sub.201 and L.sub.202 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, and Ar.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

27. The organic electroluminescence device according to claim 1, wherein L.sub.201 and L.sub.202 each independently represent a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, and A.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

28. The organic electroluminescence device according to claim 1, wherein A.sub.201 and Ar.sub.202 each independently represent a phenyl group, a naphthyl group, a phenanthryl group, a biphenyl group, a terphenyl group, a diphenylfluorenyl group, a dimethylfluorenyl group, a benzodiphenylfluorenyl group, a benzodimethylfluorenyl group, a dibenzofuranyl group, a dibenzothienyl group, a naphthobenzofuranyl group, or a naphthobenzothienyl group.

29. The organic electroluminescence device according to claim 1, wherein the second compound represented by Formula (2) is a compound represented by Formula (201), (202), (203), (204), (205), (206), (207), (208), (209), or (210) below, ##STR00571## ##STR00572## ##STR00573## in Formulae (201) to (210), L.sub.201 and Ar.sub.201 represent the same as L.sub.201 and Ar.sub.201 in Formula (2), and R.sub.201 to R.sub.208 each independently represent the same as R.sub.201 to R.sub.208 in Formula (2).

30. The organic electroluminescence device according to claim 1, wherein in the second compound represented by Formula (2), R.sub.201 to R.sub.208 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903).

31. The organic electroluminescence device according to claim 1, wherein in the second compound represented by Formula (2), R.sub.201 to R.sub.208 are each a hydrogen atom.

32. The organic electroluminescence device according to claim 1, wherein the third compound is a compound represented by Formula (37) below, ##STR00574## in Formula (37), A, B and L represent the same as A, B and L defined in Formula (3), Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 in Formula (3), Cz is a group represented by Formula (Cz1), (Cz2), or (Cz3), n is 1, 2, or 3, and when n is 2 or 3, a plurality of Cz are mutually the same or different, ##STR00575## in Formulae (Cz1), (Cz2), and (Cz3), at least one combination of adjacent two or more of R.sub.311 to R.sub.318 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, at least one combination of adjacent two or more of R.sub.320 to R.sub.324 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, at least one combination of adjacent two or more of R.sub.330 to R.sub.334 and R.sub.X are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, at least one combination of adjacent two or more of R.sub.340 to R.sub.344 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, at least one combination of adjacent two or more of R.sub.351 to R.sub.358 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, R.sub.311 to R.sub.318, R.sub.320 to R.sub.324, R.sub.330 to R.sub.334, R.sub.X, R.sub.340 to R.sub.344 and R.sub.351 to R.sub.358 forming neither the substituted or unsubstituted monocyclic ring nor the substituted or unsubstituted fused ring each independently represent a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, n1, n2, and n3 are 3; three R.sub.320 are mutually the same or different, three R.sub.330 are mutually the same or different, three R.sub.340 are mutually the same or different, * in the formulae (Cz1), (Cz2), and (Cz3) is bonded to L, and R.sub.901, R.sub.902, R.sub.903, and R.sub.904 represent the same as R.sub.901, R.sub.902, R.sub.903, and R.sub.904 in Formula (3).

33. The organic electroluminescence device according to claim 1, wherein L is a single bond, or a substituted or unsubstituted (n+1)-valent aromatic hydrocarbon ring group having 6 to 12 ring carbon atoms.

34. The organic electroluminescence device according to claim 1, wherein the third compound is a compound represented by Formula (36) below, ##STR00576## in Formula (36), A, B, and C represent the same as A, B, and C defined in Formula (3), Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 defined in Formula (3), at least one combination of adjacent two or more of R.sub.32 to R.sub.39 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, R.sub.32 to R.sub.39 forming neither the substituted or unsubstituted monocyclic ring nor the substituted or unsubstituted fused ring are each independently a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and R.sub.901, R.sub.902, R.sub.903, and R.sub.904 represent the same as R.sub.901, R.sub.902, R.sub.903, and R.sub.904 defined in Formula (3).

35. The organic electroluminescence device according to claim 1, wherein C is a substituted or unsubstituted aryl group having 13 to 24 ring carbon atoms.

36. The organic electroluminescence device according to claim 1, wherein A is a substituted or unsubstituted aryl group having 6 to 12 ring carbon atoms.

37. The organic electroluminescence device according to claim 1, wherein A is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.

38. The organic electroluminescence device according to claim 1, wherein A is a phenyl group, a biphenyl group, or a naphthyl group.

39. The organic electroluminescence device according to claim 1, wherein B is a substituted or unsubstituted aryl group having 6 to 12 ring carbon atoms.

40. The organic electroluminescence device according to claim 1, wherein B is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.

41-44. (canceled)

Description

BRIEF EXPLANATION OF DRAWING(S)

[0045] FIG. 1 schematically shows an exemplary arrangement of an organic electroluminescence device according to an exemplary embodiment of the invention.

[0046] FIG. 2 schematically shows another exemplary arrangement of the organic electroluminescence device according to the exemplary embodiment of the invention.

DESCRIPTION OF EMBODIMENT(S)

Definitions

[0047] Herein, a hydrogen atom includes isotope having different numbers of neutrons, specifically, protium, deuterium and tritium.

[0048] In chemical formulae herein, it is assumed that a hydrogen atom (i.e. protium, deuterium and tritium) is bonded to each of bondable positions that are not annexed with signs “R” or the like or “D” representing a deuterium.

[0049] Herein, the ring carbon atoms refer to the number of carbon atoms among atoms forming a ring of a compound (e.g., a monocyclic compound, fused-ring compound, cross-linking compound, carbon ring compound, and heterocyclic compound) in which the atoms are bonded to each other to form the ring. When the ring is substituted by a substituent(s), carbon atom(s) contained in the substituent(s) is not counted in the ring carbon atoms. Unless otherwise specified, the same applies to the “ring carbon atoms” described later. For instance, a benzene ring has 6 ring carbon atoms, a naphthalene ring has 10 ring carbon atoms, a pyridine ring has 5 ring carbon atoms, and a furan ring has 4 ring carbon atoms. Further, for instance, 9,9-diphenylfluorenyl group has 13 ring carbon atoms and 9,9′-spirobifluorenyl group has 25 ring carbon atoms.

[0050] When a benzene ring is substituted by a substituent in a form of, for instance, an alkyl group, the number of carbon atoms of the alkyl group is not counted in the number of the ring carbon atoms of the benzene ring. Accordingly, the benzene ring substituted by an alkyl group has 6 ring carbon atoms. When a naphthalene ring is substituted by a substituent in a form of, for instance, an alkyl group, the number of carbon atoms of the alkyl group is not counted in the number of the ring carbon atoms of the naphthalene ring. Accordingly, the naphthalene ring substituted by an alkyl group has 10 ring carbon atoms.

[0051] Herein, the ring atoms refer to the number of atoms forming a ring of a compound (e.g., a monocyclic compound, fused-ring compound, cross-linking compound, carbon ring compound, and heterocyclic compound) in which the atoms are bonded to each other to form the ring (e.g., monocyclic ring, fused ring, and ring assembly). Atom(s) not forming the ring (e.g., hydrogen atom(s) for saturating the valence of the atom which forms the ring) and atom(s) in a substituent by which the ring is substituted are not counted as the ring atoms. Unless otherwise specified, the same applies to the “ring atoms” described later. For instance, a pyridine ring has 6 ring atoms, a quinazoline ring has 10 ring atoms, and a furan ring has 5 ring atoms. For instance, the number of hydrogen atom(s) bonded to a pyridine ring or the number of atoms forming a substituent are not counted as the pyridine ring atoms. Accordingly, a pyridine ring bonded to a hydrogen atom(s) or a substituent(s) has 6 ring atoms. For instance, the hydrogen atom(s) bonded to carbon atom(s) of a quinazoline ring or the atoms forming a substituent are not counted as the quinazoline ring atoms. Accordingly, a quinazoline ring bonded to hydrogen atom(s) or a substituent(s) has 10 ring atoms.

[0052] Herein, “XX to YY carbon atoms” in the description of “substituted or unsubstituted ZZ group having XX to YY carbon atoms” represent carbon atoms of an unsubstituted ZZ group and do not include carbon atoms of a substituent(s) of the substituted ZZ group. Herein, “YY” is larger than “XX,” “XX” representing an integer of 1 or more and “YY” representing an integer of 2 or more.

[0053] Herein, “XX to YY atoms” in the description of “substituted or unsubstituted ZZ group having XX to YY atoms” represent atoms of an unsubstituted ZZ group and do not include atoms of a substituent(s) of the substituted ZZ group. Herein, “YY” is larger than “XX,” “XX” representing an integer of 1 or more and “YY” representing an integer of 2 or more.

[0054] Herein, an unsubstituted ZZ group refers to an “unsubstituted ZZ group” in a “substituted or unsubstituted ZZ group,” and a substituted ZZ group refers to a “substituted ZZ group” in a “substituted or unsubstituted ZZ group.” Herein, the term “unsubstituted” used in a “substituted or unsubstituted ZZ group” means that a hydrogen atom(s) in the ZZ group is not substituted with a substituent(s). The hydrogen atom(s) in the “unsubstituted ZZ group” is protium, deuterium, or tritium.

[0055] Herein, the term “substituted” used in a “substituted or unsubstituted ZZ group” means that at least one hydrogen atom in the ZZ group is substituted with a substituent. Similarly, the term “substituted” used in a “BB group substituted by AA group” means that at least one hydrogen atom in the BB group is substituted with the AA group.

Substituents Mentioned Herein

[0056] Substituents mentioned herein will be described below.

[0057] An “unsubstituted aryl group” mentioned herein has, unless otherwise specified herein, 6 to 50, preferably 6 to 30, more preferably 6 to 18 ring carbon atoms.

[0058] An “unsubstituted heterocyclic group” mentioned herein has, unless otherwise specified herein, 5 to 50, preferably 5 to 30, more preferably 5 to 18 ring atoms.

[0059] An “unsubstituted alkyl group” mentioned herein has, unless otherwise specified herein, 1 to 50, preferably 1 to 20, more preferably 1 to 6 carbon atoms.

[0060] An “unsubstituted alkenyl group” mentioned herein has, unless otherwise specified herein, 2 to 50, preferably 2 to 20, more preferably 2 to 6 carbon atoms.

[0061] An “unsubstituted alkynyl group” mentioned herein has, unless otherwise specified herein, 2 to 50, preferably 2 to 20, more preferably 2 to 6 carbon atoms.

[0062] An “unsubstituted cycloalkyl group” mentioned herein has, unless otherwise specified herein, 3 to 50, preferably 3 to 20, more preferably 3 to 6 ring carbon atoms.

[0063] An “unsubstituted arylene group” mentioned herein has, unless otherwise specified herein, 6 to 50, preferably 6 to 30, more preferably 6 to 18 ring carbon atoms.

[0064] An “unsubstituted divalent heterocyclic group” mentioned herein has, unless otherwise specified herein, 5 to 50, preferably 5 to 30, more preferably 5 to 18 ring atoms.

[0065] An “unsubstituted alkylene group” mentioned herein has, unless otherwise specified herein, 1 to 50, preferably 1 to 20, more preferably 1 to 6 carbon atoms.

Substituted or Unsubstituted Aryl Group

[0066] Specific examples (specific example group G1) of the “substituted or unsubstituted aryl group” mentioned herein include unsubstituted aryl groups (specific example group G1A) below and substituted aryl groups (specific example group G1B) below. (Herein, an unsubstituted aryl group refers to an “unsubstituted aryl group” in a “substituted or unsubstituted aryl group”, and a substituted aryl group refers to a “substituted aryl group” in a “substituted or unsubstituted aryl group.”) A simply termed “aryl group” herein includes both of an “unsubstituted aryl group” and a “substituted aryl group.”

[0067] The “substituted aryl group” refers to a group derived by substituting at least one hydrogen atom in an “unsubstituted aryl group” with a substituent. Examples of the “substituted aryl group” include a group derived by substituting at least one hydrogen atom in the “unsubstituted aryl group” in the specific example group G1A below with a substituent, and examples of the substituted aryl group in the specific example group G1B below. It should be noted that the examples of the “unsubstituted aryl group” and the “substituted aryl group” mentioned herein are merely exemplary, and the “substituted aryl group” mentioned herein includes a group derived by further substituting a hydrogen atom bonded to a carbon atom of a skeleton of a “substituted aryl group” in the specific example group G1B below, and a group derived by further substituting a hydrogen atom of a substituent of the “substituted aryl group” in the specific example group G1B below.

Unsubstituted Aryl Group (Specific Example Group G1A):

[0068] phenyl group, p-biphenyl group, m-biphenyl group, o-biphenyl group, p-terphenyl-4-yl group, p-terphenyl-3-yl group, p-terphenyl-2-yl group, m-terphenyl-4-yl group, m-terphenyl-3-yl group, m-terphenyl-2-yl group, o-terphenyl-4-yl group, o-terphenyl-3-yl group, o-terphenyl-2-yl group, 1-naphthyl group, 2-naphthyl group, anthryl group, benzanthryl group, phenanthryl group, benzophenanthryl group, phenalenyl group, pyrenyl group, chrysenyl group, benzochrysenyl group, triphenylenyl group, benzotriphenylenyl group, tetracenyl group, pentacenyl group, fluorenyl group, 9,9′-spirobifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, fluoranthenyl group, benzofluoranthenyl group, perylenyl group, and a monovalent aryl group derived by removing one hydrogen atom from cyclic structures represented by formulae (TEMP-1) to (TEMP-15) below.

##STR00005## ##STR00006## ##STR00007##

Substituted Aryl Group (Specific Example Group G1B):

[0069] o-tolyl group, m-tolyl group, p-tolyl group, para-xylyl group, meta-xylyl group, ortho-xylyl group, para-isopropylphenyl group, meta-isopropylphenyl group, ortho-isopropylphenyl group, para-t-butylphenyl group, meta-t-butylphenyl group, ortho-t-butylphenyl group, 3,4,5-trimethylphenyl group, 9,9-dimethylfluorenyl group, 9,9-diphenylfluorenyl group, 9,9-bis(4-methylphenyl)fluorenyl group, 9,9-bis(4-isopropylphenyl)fluorenyl group, 9,9-bis(4-t-butylphenyl)fluorenyl group, cyanophenyl group, triphenylsilylphenyl group, trimethylsilylphenyl group, phenylnaphthyl group, naphthylphenyl group, and a group derived by substituting at least one hydrogen atom of a monovalent group derived from one of the cyclic structures represented by Formulae (TEMP-1) to (TEMP-15) with a substituent.

Substituted or Unsubstituted Heterocyclic Group

[0070] The “heterocyclic group” mentioned herein refers to a cyclic group having at least one hetero atom in the ring atoms. Specific examples of the hetero atom include a nitrogen atom, oxygen atom, sulfur atom, silicon atom, phosphorus atom, and boron atom.

[0071] The “heterocyclic group” mentioned herein is a monocyclic group or a fused-ring group.

[0072] The “heterocyclic group” mentioned herein is an aromatic heterocyclic group or a non-aromatic heterocyclic group.

[0073] Specific examples (specific example group G2) of the “substituted or unsubstituted heterocyclic group” mentioned herein include unsubstituted heterocyclic groups (specific example group G2A) and substituted heterocyclic groups (specific example group G2B). (Herein, an unsubstituted heterocyclic group refers to an “unsubstituted heterocyclic group” in a “substituted or unsubstituted heterocyclic group,” and a substituted heterocyclic group refers to a “substituted heterocyclic group” in a “substituted or unsubstituted heterocyclic group.”) A simply termed “heterocyclic group” herein includes both of “unsubstituted heterocyclic group” and “substituted heterocyclic group.”

[0074] The “substituted heterocyclic group” refers to a group derived by substituting at least one hydrogen atom in an “unsubstituted heterocyclic group” with a substituent. Specific examples of the “substituted heterocyclic group” include a group derived by substituting at least one hydrogen atom in the “unsubstituted heterocyclic group” in the specific example group G2A below with a substituent, and examples of the substituted heterocyclic group in the specific example group G2B below. It should be noted that the examples of the “unsubstituted heterocyclic group” and the “substituted heterocyclic group” mentioned herein are merely exemplary, and the “substituted heterocyclic group” mentioned herein includes a group derived by further substituting a hydrogen atom bonded to a ring atom of a skeleton of a “substituted heterocyclic group” in the specific example group G2B below, and a group derived by further substituting a hydrogen atom of a substituent of the “substituted heterocyclic group” in the specific example group G2B below.

[0075] The specific example group G2A includes, for instance, unsubstituted heterocyclic groups including a nitrogen atom (specific example group G2A1) below, unsubstituted heterocyclic groups including an oxygen atom (specific example group G2A2) below, unsubstituted heterocyclic groups including a sulfur atom (specific example group G2A3) below, and monovalent heterocyclic groups (specific example group G2A4) derived by removing a hydrogen atom from cyclic structures represented by formulae (TEMP-16) to (TEMP-33) below.

[0076] The specific example group G2B includes, for instance, substituted heterocyclic groups including a nitrogen atom (specific example group G2B1) below, substituted heterocyclic groups including an oxygen atom (specific example group G2B2) below, substituted heterocyclic groups including a sulfur atom (specific example group G2B3) below, and groups derived by substituting at least one hydrogen atom of the monovalent heterocyclic groups (specific example group G2B4) derived from the cyclic structures represented by formulae (TEMP-16) to (TEMP-33) below.

Unsubstituted Heterocyclic Groups Including Nitrogen Atom (Specific Example Group G2A1):

[0077] pyrrolyl group, imidazolyl group, pyrazolyl group, triazolyl group, tetrazolyl group, oxazolyl group, isoxazolyl group, oxadiazolyl group, thiazolyl group, isothiazolyl group, thiadiazolyl group, pyridyl group, pyridazynyl group, pyrimidinyl group, pyrazinyl group, triazinyl group, indolyl group, isoindolyl group, indolizinyl group, quinolizinyl group, quinolyl group, isoquinolyl group, cinnolyl group, phthalazinyl group, quinazolinyl group, quinoxalinyl group, benzimidazolyl group, indazolyl group, phenanthrolinyl group, phenanthridinyl group, acridinyl group, phenazinyl group, carbazolyl group, benzocarbazolyl group, morpholino group, phenoxazinyl group, phenothiazinyl group, azacarbazolyl group, and diazacarbazolyl group.

Unsubstituted Heterocyclic Groups Including Oxygen Atom (Specific Example Group G2A2):

[0078] furyl group, oxazolyl group, isoxazolyl group, oxadiazolyl group, xanthenyl group, benzofuranyl group, isobenzofuranyl group, dibenzofuranyl group, naphthobenzofuranyl group, benzoxazolyl group, benzisoxazolyl group, phenoxazinyl group, morpholino group, dinaphthofuranyl group, azadibenzofuranyl group, diazadibenzofuranyl group, azanaphthobenzofuranyl group, and diazanaphthobenzofuranyl group.

Unsubstituted Heterocyclic Groups Including Sulfur Atom (Specific Example Group G2A3):

[0079] thienyl group, thiazolyl group, isothiazolyl group, thiadiazolyl group, benzothiophenyl group (benzothienyl group), isobenzothiophenyl group (isobenzothienyl group), dibenzothiophenyl group (dibenzothienyl group), naphthobenzothiophenyl group (nahthobenzothienyl group), benzothiazolyl group, benzisothiazolyl group, phenothiazinyl group, dinaphthothiophenyl group (dinaphthothienyl group), azadibenzothiophenyl group (azadibenzothienyl group), diazadibenzothiophenyl group (diazadibenzothienyl group), azanaphthobenzothiophenyl group (azanaphthobenzothienyl group), and diazanaphthobenzothiophenyl group (diazanaphthobenzothienyl group).

Monovalent Heterocyclic Groups Derived by Removing One Hydrogen Atom from Cyclic Structures Represented by Formulae (TEMP-16) to (TEMP-33) (Specific Example Group G2A4):

##STR00008## ##STR00009## ##STR00010##

[0080] In Formulae (TEMP-16) to (TEMP-33), X.sub.A and Y.sub.A are each independently an oxygen atom, a sulfur atom, NH, or CH.sub.2, with a proviso that at least one of X.sub.A or Y.sub.A is an oxygen atom, a sulfur atom, or NH.

[0081] When at least one of X.sub.A or Y.sub.A in Formulae (TEMP-16) to (TEMP-33) is NH or CH.sub.2, the monovalent heterocyclic groups derived from the cyclic structures represented by Formulae (TEMP-16) to (TEMP-33) include a monovalent group derived by removing one hydrogen atom from NH or CH.sub.2.

Substituted Heterocyclic Groups Including Nitrogen Atom (Specific Example Group G2B1):

[0082] (9-phenyl)carbazolyl group, (9-biphenylyl)carbazolyl group, (9-phenyl)phenylcarbazolyl group, (9-naphthyl)carbazolyl group, diphenylcarbazole-9-yl group, phenylcarbazole-9-yl group, methylbenzimidazolyl group, ethylbenzimidazolyl group, phenyltriazinyl group, biphenylyltriazinyl group, diphenyltriazinyl group, phenylquinazolinyl group, and biphenylquinazolinyl group.

Substituted Heterocyclic Groups Including Oxygen Atom (Specific Example Group G2B2):

[0083] phenyldibenzofuranyl group, methyldibenzofuranyl group, t-butyldibenzofuranyl group, and monovalent residue of spiro[9H-xanthene-9,9′-[9H]fluorene].

Substituted Heterocyclic Groups Including Sulfur Atom (Specific Example Group G2B3):

[0084] phenyldibenzothiophenyl group, methyldibenzothiophenyl group, t-butyldibenzothiophenyl group, and monovalent residue of spiro[9H-thioxanthene-9,9′-[9H]fluorene].

Groups Obtained by Substituting at Least One Hydrogen Atom of Monovalent Heterocyclic Group Derived from Cyclic Structures Represented by Formulae (TEMP-16) to (TEMP-33) with Substituent (Specific Example Group G2B4):

[0085] The “at least one hydrogen atom of a monovalent heterocyclic group” means at least one hydrogen atom selected from a hydrogen atom bonded to a ring carbon atom of the monovalent heterocyclic group, a hydrogen atom bonded to a nitrogen atom of at least one of XA or YA in a form of NH, and a hydrogen atom of one of XA and YA in a form of a methylene group (CH.sub.2).

Substituted or Unsubstituted Alkyl Group

[0086] Specific examples (specific example group G3) of the “substituted or unsubstituted alkyl group” mentioned herein include unsubstituted alkyl groups (specific example group G3A) and substituted alkyl groups (specific example group G3B) below. (Herein, an unsubstituted alkyl group refers to an “unsubstituted alkyl group” in a “substituted or unsubstituted alkyl group,” and a substituted alkyl group refers to a “substituted alkyl group” in a “substituted or unsubstituted alkyl group.”) A simply termed “alkyl group” herein includes both of “unsubstituted alkyl group” and “substituted alkyl group.”

[0087] The “substituted alkyl group” refers to a group derived by substituting at least one hydrogen atom in an “unsubstituted alkyl group” with a substituent. Specific examples of the “substituted alkyl group” include a group derived by substituting at least one hydrogen atom of an “unsubstituted alkyl group” (specific example group G3A) below with a substituent, and examples of the substituted alkyl group (specific example group G3B) below. Herein, the alkyl group for the “unsubstituted alkyl group” refers to a chain alkyl group. Accordingly, the “unsubstituted alkyl group” include linear “unsubstituted alkyl group” and branched “unsubstituted alkyl group.” It should be noted that the examples of the “unsubstituted alkyl group” and the “substituted alkyl group” mentioned herein are merely exemplary, and the “substituted alkyl group” mentioned herein includes a group derived by further substituting a hydrogen atom of a skeleton of the “substituted alkyl group” in the specific example group G3B, and a group derived by further substituting a hydrogen atom of a substituent of the “substituted alkyl group” in the specific example group G3B.

Unsubstituted Alkyl Group (Specific Example Group G3A):

[0088] methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, and t-butyl group.

Substituted Alkyl Group (Specific Example Group G3B):

[0089] heptafluoropropyl group (including isomer thereof), pentafluoroethyl group,

[0090] 2,2,2-trifluoroethyl group, and trifluoromethyl group.

Substituted or Unsubstituted Alkenyl Group

[0091] Specific examples (specific example group G4) of the “substituted or unsubstituted alkenyl group” mentioned herein include unsubstituted alkenyl groups (specific example group G4A) and substituted alkenyl groups (specific example group G4B). (Herein, an unsubstituted alkenyl group refers to an “unsubstituted alkenyl group” in a “substituted or unsubstituted alkenyl group,” and a substituted alkenyl group refers to a “substituted alkenyl group” in a “substituted or unsubstituted alkenyl group.”) A simply termed “alkenyl group” herein includes both of “unsubstituted alkenyl group” and “substituted alkenyl group.”

[0092] The “substituted alkenyl group” refers to a group derived by substituting at least one hydrogen atom in an “unsubstituted alkenyl group” with a substituent. Specific examples of the “substituted alkenyl group” include an “unsubstituted alkenyl group” (specific example group G4A) substituted by a substituent, and examples of the substituted alkenyl group (specific example group G4B) below. It should be noted that the examples of the “unsubstituted alkenyl group” and the “substituted alkenyl group” mentioned herein are merely exemplary, and the “substituted alkenyl group” mentioned herein includes a group derived by further substituting a hydrogen atom of a skeleton of the “substituted alkenyl group” in the specific example group G4B with a substituent, and a group derived by further substituting a hydrogen atom of a substituent of the “substituted alkenyl group” in the specific example group G4B with a substituent.

Unsubstituted Alkenyl Group (Specific Example Group G4A):

[0093] vinyl group, allyl group, 1-butenyl group, 2-butenyl group, and 3-butenyl group.

Substituted Alkenyl Group (Specific Example Group G4B):

[0094] 1,3-butanedienyl group, 1-methylvinyl group, 1-methylallyl group, 1,1-dimethylallyl group, 2-methylallyl group, and 1,2-dimethylallyl group.

Substituted or Unsubstituted Alkynyl Group

[0095] Specific examples (specific example group G5) of the “substituted or unsubstituted alkynyl group” mentioned herein include unsubstituted alkynyl groups (specific example group G5A) below. (Herein, an unsubstituted alkynyl group refers to an “unsubstituted alkynyl group” in a “substituted or unsubstituted alkynyl group.”) A simply termed “alkynyl group” herein includes both of “unsubstituted alkynyl group” and “substituted alkynyl group.”

[0096] The “substituted alkynyl group” refers to a group derived by substituting at least one hydrogen atom in an “unsubstituted alkynyl group” with a substituent. Specific examples of the “substituted alkynyl group” include a group derived by substituting at least one hydrogen atom of the “unsubstituted alkynyl group” (specific example group G5A) below with a substituent.

Unsubstituted Alkynyl Group (Specific Example Group G5A):

[0097] ethynyl group.

Substituted or Unsubstituted Cycloalkyl Group

[0098] Specific examples (specific example group G6) of the “substituted or unsubstituted cycloalkyl group” mentioned herein include unsubstituted cycloalkyl groups (specific example group G6A) and substituted cycloalkyl groups (specific example group G6B). (Herein, an unsubstituted cycloalkyl group refers to an “unsubstituted cycloalkyl group” in a “substituted or unsubstituted cycloalkyl group,” and a substituted cycloalkyl group refers to a “substituted cycloalkyl group” in a “substituted or unsubstituted cycloalkyl group.”) A simply termed “cycloalkyl group” herein includes both of “unsubstituted cycloalkyl group” and “substituted cycloalkyl group.”

[0099] The “substituted cycloalkyl group” refers to a group derived by substituting at least one hydrogen atom of an “unsubstituted cycloalkyl group” with a substituent. Specific examples of the “substituted cycloalkyl group” include a group derived by substituting at least one hydrogen atom of the “unsubstituted cycloalkyl group” (specific example group G6A) below with a substituent, and examples of the substituted cycloalkyl group (specific example group G6B) below. It should be noted that the examples of the “unsubstituted cycloalkyl group” and the “substituted cycloalkyl group” mentioned herein are merely exemplary, and the “substituted cycloalkyl group” mentioned herein includes a group derived by substituting at least one hydrogen atom bonded to a carbon atom of a skeleton of the “substituted cycloalkyl group” in the specific example group G6B with a substituent, and a group derived by further substituting a hydrogen atom of a substituent of the “substituted cycloalkyl group” in the specific example group G6B with a substituent.

Unsubstituted Cycloalkyl Group (Specific Example Group G6A):

[0100] cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, 1-adamantyl group, 2-adamantyl group, 1-norbornyl group, and 2-norbornyl group.

Substituted Cycloalkyl Group (Specific Example Group G6B):

[0101] 4-methylcyclohexyl group.

Group Represented by —Si(R.sub.901)(R.sub.902)(R.sub.903)

[0102] Specific examples (specific example group G7) of the group represented herein by —Si(R.sub.901)(R.sub.902)(R.sub.903) include —Si(G1)(G1)(G1), —Si(G1)(G2)(G2), —Si(G1)(G1)(G2), —Si(G2)(G2)(G2), —Si(G3)(G3)(G3), and —Si(G6)(G6)(G6), where:

[0103] G1 represents a “substituted or unsubstituted aryl group” in the specific example group G1,

[0104] G2 represents a “substituted or unsubstituted heterocyclic group” in the specific example group G2,

[0105] G3 represents a “substituted or unsubstituted alkyl group” in the specific example group G3, and

[0106] G6 represents a “substituted or unsubstituted cycloalkyl group” in the specific example group G6,

[0107] a plurality of G1 in —Si(G1)(G1)(G1) are mutually the same or different,

[0108] a plurality of G2 in —Si(G1)(G2)(G2) are mutually the same or different,

[0109] a plurality of G1 in —Si(G1)(G1)(G2) are mutually the same or different,

[0110] a plurality of G2 in —Si(G2)(G2)(G2) are mutually the same or different,

[0111] a plurality of G3 in —Si(G3)(G3)(G3) are mutually the same or different, and

[0112] a plurality of G6 in —Si(G6)(G6)(G6) are mutually the same or different.

Group Represented by —O—(R.SUB.904.)

[0113] Specific examples (specific example group G8) of a group represented by —O—(R.sub.904) herein include —O(G1), —O(G2), —O(G3), and —O(G6), where:

[0114] G1 represents a “substituted or unsubstituted aryl group” in the specific example group G1,

[0115] G2 represents a “substituted or unsubstituted heterocyclic group” in the specific example group G2,

[0116] G3 represents a “substituted or unsubstituted alkyl group” in the specific example group G3, and

[0117] G6 represents a “substituted or unsubstituted cycloalkyl group” in the specific example group G6.

Group Represented by —S—(R.SUB.905.)

[0118] Specific examples (specific example group G9) of a group represented herein by —S—(R.sub.905) include —S(G1), —S(G2), —S(G3), and —S(G6), where:

[0119] G1 represents a “substituted or unsubstituted aryl group” in the specific example group G1,

[0120] G2 represents a “substituted or unsubstituted heterocyclic group” in the specific example group G2,

[0121] G3 represents a “substituted or unsubstituted alkyl group” in the specific example group G3, and

[0122] G6 represents a “substituted or unsubstituted cycloalkyl group” in the specific example group G6.

Group Represented by —N(R.sub.906)(R.sub.907)

[0123] Specific examples (specific example group G10) of a group represented herein by —N(R.sub.906)(R.sub.907) include —N(G1)(G1), —N(G2)(G2), —N(G1)(G2), —N(G3)(G3), and —N(G6)(G6), where:

[0124] G1 represents a “substituted or unsubstituted aryl group” in the specific example group G1,

[0125] G2 represents a “substituted or unsubstituted heterocyclic group” in the specific example group G2,

[0126] G3 represents a “substituted or unsubstituted alkyl group” in the specific example group G3,

[0127] G6 represents a “substituted or unsubstituted cycloalkyl group” in the specific example group G6,

[0128] a plurality of G1 in —N(G1)(G1) are mutually the same or different,

[0129] a plurality of G2 in —N(G2)(G2) are mutually the same or different,

[0130] a plurality of G3 in —N(G3)(G3) are mutually the same or different, and

[0131] a plurality of G6 in —N(G6)(G6) are mutually the same or different.

Halogen Atom

[0132] Specific examples (specific example group G11) of “halogen atom” mentioned herein include a fluorine atom, chlorine atom, bromine atom, and iodine atom.

Substituted or Unsubstituted Fluoroalkyl Group

[0133] The “substituted or unsubstituted fluoroalkyl group” mentioned herein refers to a group derived by substituting at least one hydrogen atom bonded to at least one of carbon atoms forming an alkyl group in the “substituted or unsubstituted alkyl group” with a fluorine atom, and also includes a group (perfluoro group) derived by substituting all of hydrogen atoms bonded to carbon atoms forming the alkyl group in the “substituted or unsubstituted alkyl group” with fluorine atoms. An “unsubstituted fluoroalkyl group” has, unless otherwise specified herein, 1 to 50, preferably 1 to 30, more preferably 1 to 18 carbon atoms. The “substituted fluoroalkyl group” refers to a group derived by substituting at least one hydrogen atom in a “fluoroalkyl group” with a substituent. It should be noted that the examples of the “substituted fluoroalkyl group” mentioned herein include a group derived by further substituting at least one hydrogen atom bonded to a carbon atom of an alkyl chain of a “substituted fluoroalkyl group” with a substituent, and a group derived by further substituting at least one hydrogen atom of a substituent of the “substituted fluoroalkyl group” with a substituent. Specific examples of the “substituted fluoroalkyl group” include a group derived by substituting at least one hydrogen atom of the “alkyl group” (specific example group G3) with a fluorine atom.

Substituted or Unsubstituted Haloalkyl Group

[0134] The “substituted or unsubstituted haloalkyl group” mentioned herein refers to a group derived by substituting at least one hydrogen atom bonded to carbon atoms forming the alkyl group in the “substituted or unsubstituted alkyl group” with a halogen atom, and also includes a group derived by substituting all hydrogen atoms bonded to carbon atoms forming the alkyl group in the “substituted or unsubstituted alkyl group” with halogen atoms. An “unsubstituted haloalkyl group” has, unless otherwise specified herein, 1 to 50, preferably 1 to 30, more preferably 1 to 18 carbon atoms. The “substituted haloalkyl group” refers to a group derived by substituting at least one hydrogen atom in a “haloalkyl group” with a substituent. It should be noted that the examples of the “substituted haloalkyl group” mentioned herein include a group derived by further substituting at least one hydrogen atom bonded to a carbon atom of an alkyl chain of a “substituted haloalkyl group” with a substituent, and a group derived by further substituting at least one hydrogen atom of a substituent of the “substituted haloalkyl group” with a substituent. Specific examples of the “unsubstituted haloalkyl group” include a group derived by substituting at least one hydrogen atom of the “alkyl group” (specific example group G3) with a halogen atom. The haloalkyl group is sometimes referred to as a halogenated alkyl group.

Substituted or Unsubstituted Alkoxy Group

[0135] Specific examples of a “substituted or unsubstituted alkoxy group” mentioned herein include a group represented by —O(G3), G3 being the “substituted or unsubstituted alkyl group” in the specific example group G3. An “unsubstituted alkoxy group” has, unless otherwise specified herein, 1 to 50, preferably 1 to 30, more preferably 1 to 18 carbon atoms.

Substituted or Unsubstituted Alkylthio Group

[0136] Specific examples of a “substituted or unsubstituted alkylthio group” mentioned herein include a group represented by —S(G3), G3 being the “substituted or unsubstituted alkyl group” in the specific example group G3. An “unsubstituted alkylthio group” has, unless otherwise specified herein, 1 to 50, preferably 1 to 30, more preferably 1 to 18 carbon atoms.

Substituted or Unsubstituted Aryloxy Group

[0137] Specific examples of a “substituted or unsubstituted aryloxy group” mentioned herein include a group represented by —O(G1), G1 being the “substituted or unsubstituted aryl group” in the specific example group G1. An “unsubstituted aryloxy group” has, unless otherwise specified herein, 6 to 50, preferably 6 to 30, more preferably 6 to 18 ring carbon atoms.

Substituted or Unsubstituted Arylthio Group

[0138] Specific examples of a “substituted or unsubstituted arylthio group” mentioned herein include a group represented by —S(G1), G1 being the “substituted or unsubstituted aryl group” in the specific example group G1. An “unsubstituted arylthio group” has, unless otherwise specified herein, 6 to 50, preferably 6 to 30, more preferably 6 to 18 ring carbon atoms.

Substituted or Unsubstituted Trialkylsilyl Group

[0139] Specific examples of a “trialkylsilyl group” mentioned herein include a group represented by —Si(G3)(G3)(G3), G3 being the “substituted or unsubstituted alkyl group” in the specific example group G3. The plurality of G3 in —Si(G3)(G3)(G3) are mutually the same or different. Each of the alkyl groups in the “trialkylsilyl group” has, unless otherwise specified herein, 1 to 50, preferably 1 to 20, more preferably 1 to 6 carbon atoms.

Substituted or Unsubstituted Aralkyl Group

[0140] Specific examples of a “substituted or unsubstituted aralkyl group” mentioned herein include a group represented by (G3)-(G1), G3 being the “substituted or unsubstituted alkyl group” in the specific example group G3, G1 being the “substituted or unsubstituted aryl group” in the specific example group G1. Accordingly, the “aralkyl group” is a group derived by substituting a hydrogen atom of the “alkyl group” with a substituent in a form of the “aryl group,” which is an example of the “substituted alkyl group.” An “unsubstituted aralkyl group,” which is an “unsubstituted alkyl group” substituted by an “unsubstituted aryl group,” has, unless otherwise specified herein, 7 to 50 carbon atoms, preferably 7 to 30 carbon atoms, more preferably 7 to 18 carbon atoms.

[0141] Specific examples of the “substituted or unsubstituted aralkyl group” include a benzyl group, 1-phenylethyl group, 2-phenylethyl group, 1-phenylisopropyl group, 2-phenylisopropyl group, phenyl-t-butyl group, α-naphthylmethyl group, 1-α-naphthylethyl group, 2-α-naphthylethyl group, 1-α-naphthylisopropyl group, 2-α-naphthylisopropyl group, β-naphthylmethyl group, 1-β-naphthylethyl group, 2-β-naphthylethyl group, 1-β-naphthylisopropyl group, and 2-β-naphthylisopropyl group.

[0142] Preferable examples of the substituted or unsubstituted aryl group mentioned herein include, unless otherwise specified herein, a phenyl group, p-biphenyl group, m-biphenyl group, o-biphenyl group, p-terphenyl-4-yl group, p-terphenyl-3-yl group, p-terphenyl-2-yl group, m-terphenyl-4-yl group, m-terphenyl-3-yl group, m-terphenyl-2-yl group, o-terphenyl-4-yl group, o-terphenyl-3-yl group, o-terphenyl-2-yl group, 1-naphthyl group, 2-naphthyl group, anthryl group, phenanthryl group, pyrenyl group, chrysenyl group, triphenylenyl group, fluorenyl group, 9,9′-spirobifluorenyl group, 9,9-dimethylfluorenyl group, and 9,9-diphenylfluorenyl group.

[0143] Preferable examples of the substituted or unsubstituted heterocyclic group mentioned herein include, unless otherwise specified herein, a pyridyl group, pyrimidinyl group, triazinyl group, quinolyl group, isoquinolyl group, quinazolinyl group, benzimidazolyl group, phenanthrolinyl group, carbazolyl group (1-carbazolyl group, 2-carbazolyl group, 3-carbazolyl group, 4-carbazolyl group, or 9-carbazolyl group), benzocarbazolyl group, azacarbazolyl group, diazacarbazolyl group, dibenzofuranyl group, naphthobenzofuranyl group, azadibenzofuranyl group, diazadibenzofuranyl group, dibenzothiophenyl group, naphthobenzothiophenyl group, azadibenzothiophenyl group, diazadibenzothiophenyl group, (9-phenyl)carbazolyl group ((9-phenyl)carbazole-1-yl group, (9-phenyl)carbazole-2-yl group, (9-phenyl)carbazole-3-yl group, or (9-phenyl)carbazole-4-yl group), (9-biphenylyl)carbazolyl group, (9-phenyl)phenylcarbazolyl group, diphenylcarbazole-9-yl group, phenylcarbazole-9-yl group, phenyltriazinyl group, biphenylyltriazinyl group, diphenyltriazinyl group, phenyldibenzofuranyl group, and phenyldibenzothiophenyl group.

[0144] The carbazolyl group mentioned herein is, unless otherwise specified herein, specifically a group represented by one of formulae below.

##STR00011##

[0145] The (9-phenyl)carbazolyl group mentioned herein is, unless otherwise specified herein, specifically a group represented by one of formulae below.

##STR00012##

[0146] In Formulae (TEMP-Cz1) to (TEMP-Cz9), * represents a bonding position.

[0147] The dibenzofuranyl group and dibenzothiophenyl group mentioned herein are, unless otherwise specified herein, each specifically represented by one of formulae below.

##STR00013##

[0148] In Formulae (TEMP-34) to (TEMP-41), * represents a bonding position.

[0149] Preferable examples of the substituted or unsubstituted alkyl group mentioned herein include, unless otherwise specified herein, a methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group, and t-butyl group.

Substituted or Unsubstituted Arylene Group

[0150] The “substituted or unsubstituted arylene group” mentioned herein is, unless otherwise specified herein, a divalent group derived by removing one hydrogen atom on an aryl ring of the “substituted or unsubstituted aryl group.” Specific examples of the “substituted or unsubstituted arylene group” (specific example group G12) include a divalent group derived by removing one hydrogen atom on an aryl ring of the “substituted or unsubstituted aryl group” in the specific example group G1.

Substituted or Unsubstituted Divalent Heterocyclic Group

[0151] The “substituted or unsubstituted divalent heterocyclic group” mentioned herein is, unless otherwise specified herein, a divalent group derived by removing one hydrogen atom on a heterocycle of the “substituted or unsubstituted heterocyclic group.” Specific examples of the “substituted or unsubstituted divalent heterocyclic group” (specific example group G13) include a divalent group derived by removing one hydrogen atom on a heterocyclic ring of the “substituted or unsubstituted heterocyclic group” in the specific example group G2.

Substituted or Unsubstituted Alkylene Group

[0152] The “substituted or unsubstituted alkylene group” mentioned herein is, unless otherwise specified herein, a divalent group derived by removing one hydrogen atom on an alkyl chain of the “substituted or unsubstituted alkyl group.” Specific examples of the “substituted or unsubstituted alkylene group” (specific example group G14) include a divalent group derived by removing one hydrogen atom on an alkyl chain of the “substituted or unsubstituted alkyl group” in the specific example group G3.

[0153] The substituted or unsubstituted arylene group mentioned herein is, unless otherwise specified herein, preferably any one of groups represented by formulae (TEMP-42) to (TEMP-68) below.

##STR00014## ##STR00015##

[0154] In Formulae (TEMP-42) to (TEMP-52), Q.sub.1 to Q.sub.10 are each independently a hydrogen atom or a substituent.

[0155] In Formulae (TEMP-42) to (TEMP-52), * represents a bonding position.

##STR00016## ##STR00017##

[0156] In Formulae (TEMP-53) to (TEMP-62), Q.sub.1 to Q.sub.10 are each independently a hydrogen atom or a substituent.

[0157] In Formulae, Q.sub.9 and Q.sub.10 may be mutually bonded through a single bond to form a ring.

[0158] In Formulae (TEMP-53) to (TEMP-62), * represents a bonding position.

##STR00018##

[0159] In Formulae (TEMP-63) to (TEMP-68), Q.sub.1 to Q.sub.8 are each independently a hydrogen atom or a substituent.

[0160] In Formulae (TEMP-63) to (TEMP-68), * represents a bonding position.

[0161] The substituted or unsubstituted divalent heterocyclic group mentioned herein is, unless otherwise specified herein, preferably a group represented by any one of formulae (TEMP-69) to (TEMP-102) below.

##STR00019## ##STR00020## ##STR00021##

[0162] In Formulae (TEMP-69) to (TEMP-82), Q.sub.1 to Q.sub.9 are each independently a hydrogen atom or a substituent.

##STR00022## ##STR00023## ##STR00024## ##STR00025##

[0163] In Formulae (TEMP-83) to (TEMP-102), Q.sub.1 to Q.sub.8 are each independently a hydrogen atom or a substituent.

[0164] The substituent mentioned herein has been described above.

Instance of “Bonded to Form Ring”

[0165] Instances where “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded” mentioned herein refer to instances where “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted monocyclic ring, “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted fused ring,” and “at least one combination of adjacent two or more (of . . . ) are not mutually bonded.”

[0166] Instances where “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted monocyclic ring” and “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted fused ring” mentioned herein (these instances will be sometimes collectively referred to as an instance of “bonded to form a ring” hereinafter) will be described below. An anthracene compound having a basic skeleton in a form of an anthracene ring and represented by Formula (TEMP-103) below will be used as an example for the description.

##STR00026##

[0167] For instance, when “at least one combination of adjacent two or more of R.sub.921 to R.sub.930 are mutually bonded to form a ring,” the combination of adjacent ones of R.sub.921 to R.sub.930 (i.e. the combination at issue) is a combination of R.sub.921 and R.sub.922, a combination of R.sub.922 and R.sub.923, a combination of R.sub.923 and R.sub.924, a combination of R.sub.924 and R.sub.930, a combination of R.sub.930 and R.sub.925, a combination of R.sub.925 and R.sub.926, a combination of R.sub.926 and R.sub.927, a combination of R.sub.927 and R.sub.928, a combination of R.sub.928 and R.sub.929, or a combination of R.sub.929 and R.sub.921.

[0168] The term “at least one combination” means that two or more of the above combinations of adjacent two or more of R.sub.921 to R.sub.930 may simultaneously form rings. For instance, when R.sub.921 and R.sub.922 are mutually bonded to form a ring Q.sub.A and R.sub.925 and R.sub.926 are simultaneously mutually bonded to form a ring Q.sub.B, the anthracene compound represented by Formula (TEMP-103) is represented by Formula (TEMP-104) below.

##STR00027##

[0169] The instance where the “combination of adjacent two or more” form a ring means not only an instance where the “two” adjacent components are bonded but also an instance where adjacent “three or more” are bonded. For instance, R.sub.921 and R.sub.922 are mutually bonded to form a ring Q.sub.A and R.sub.922 and R.sub.923 are mutually bonded to form a ring Q.sub.C, and mutually adjacent three components (R.sub.921, R.sub.922 and R.sub.923) are mutually bonded to form a ring fused to the anthracene basic skeleton. In this case, the anthracene compound represented by Formula (TEMP-103) is represented by Formula (TEMP-105) below. In Formula (TEMP-105) below, the ring Q.sub.A and the ring Q.sub.C share R.sub.922.

##STR00028##

[0170] The formed “monocyclic ring” or “fused ring” may be, in terms of the formed ring in itself, a saturated ring or an unsaturated ring. When the “combination of adjacent two” form a “monocyclic ring” or a “fused ring,” the “monocyclic ring” or “fused ring” may be a saturated ring or an unsaturated ring. For instance, the ring Q.sub.A and the ring Q.sub.B formed in Formula (TEMP-104) are each independently a “monocyclic ring” or a “fused ring.” Further, the ring Q.sub.A and the ring Q.sub.C formed in Formula (TEMP-105) are each a “fused ring.” The ring Q.sub.A and the ring Q.sub.C in Formula (TEMP-105) are fused to form a fused ring. When the ring Q.sub.A in Formula (TMEP-104) is a benzene ring, the ring Q.sub.A is a monocyclic ring. When the ring Q.sub.A in Formula (TMEP-104) is a naphthalene ring, the ring Q.sub.A is a fused ring.

[0171] The “unsaturated ring” represents an aromatic hydrocarbon ring or an aromatic heterocycle. The “saturated ring” represents an aliphatic hydrocarbon ring or a non-aromatic heterocycle.

[0172] Specific examples of the aromatic hydrocarbon ring include a ring formed by terminating a bond of a group in the specific example of the specific example group G1 with a hydrogen atom.

[0173] Specific examples of the aromatic heterocycle include a ring formed by terminating a bond of an aromatic heterocyclic group in the specific example of the specific example group G2 with a hydrogen atom.

[0174] Specific examples of the aliphatic hydrocarbon ring include a ring formed by terminating a bond of a group in the specific example of the specific example group G6 with a hydrogen atom.

[0175] The phrase “to form a ring” herein means that a ring is formed only by a plurality of atoms of a basic skeleton, or by a combination of a plurality of atoms of the basic skeleton and one or more optional atoms. For instance, the ring Q.sub.A formed by mutually bonding R.sub.921 and R.sub.922 shown in Formula (TEMP-104) is a ring formed by a carbon atom of the anthracene skeleton bonded to R.sub.921, a carbon atom of the anthracene skeleton bonded to R.sub.922, and one or more optional atoms. Specifically, when the ring Q.sub.A is a monocyclic unsaturated ring formed by R.sub.921 and R.sub.922, the ring formed by a carbon atom of the anthracene skeleton bonded to R.sub.921, a carbon atom of the anthracene skeleton bonded to R.sub.922, and four carbon atoms is a benzene ring.

[0176] The “optional atom” is, unless otherwise specified herein, preferably at least one atom selected from the group consisting of a carbon atom, nitrogen atom, oxygen atom, and sulfur atom. A bond of the optional atom (e.g. a carbon atom and a nitrogen atom) not forming a ring may be terminated by a hydrogen atom or the like or may be substituted by an “optional substituent” described later. When the ring includes an optional element other than carbon atom, the resultant ring is a heterocycle.

[0177] The number of “one or more optional atoms” forming the monocyclic ring or fused ring is, unless otherwise specified herein, preferably in a range from 2 to 15, more preferably in a range from 3 to 12, further preferably in a range from 3 to 5.

[0178] Unless otherwise specified herein, the ring, which may be a “monocyclic ring” or “fused ring,” is preferably a “monocyclic ring.”

[0179] Unless otherwise specified herein, the ring, which may be a “saturated ring” or “unsaturated ring,” is preferably an “unsaturated ring.”

[0180] Unless otherwise specified herein, the “monocyclic ring” is preferably a benzene ring.

[0181] Unless otherwise specified herein, the “unsaturated ring” is preferably a benzene ring.

[0182] When “at least one combination of adjacent two or more” (of . . . ) are “mutually bonded to form a substituted or unsubstituted monocyclic ring” or “mutually bonded to form a substituted or unsubstituted fused ring,” unless otherwise specified herein, at least one combination of adjacent two or more of components are preferably mutually bonded to form a substituted or unsubstituted “unsaturated ring” formed of a plurality of atoms of the basic skeleton, and 1 to 15 atoms of at least one element selected from the group consisting of carbon, nitrogen, oxygen and sulfur.

[0183] When the “monocyclic ring” or the “fused ring” has a substituent, the substituent is the substituent described in later-described “optional substituent.” When the “monocyclic ring” or the “fused ring” has a substituent, specific examples of the substituent are the substituents described in the above under the subtitle “Substituent Mentioned Herein.”.

[0184] When the “saturated ring” or the “unsaturated ring” has a substituent, the substituent is the substituent described in later-described “optional substituent.” When the “monocyclic ring” or the “fused ring” has a substituent, specific examples of the substituent are the substituents described in the above under the subtitle “Substituent Mentioned Herein.”

[0185] The above is the description for the instances where “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted monocyclic ring” and “at least one combination of adjacent two or more (of . . . ) are mutually bonded to form a substituted or unsubstituted fused ring” mentioned herein (sometimes referred to as an instance of “bonded to form a ring”).

Substituent for Substituted or Unsubstituted Group

[0186] In an exemplary embodiment herein, a substituent for the substituted or unsubstituted group (sometimes referred to as an “optional substituent” hereinafter) is, for instance, a group selected from the group consisting of an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted alkenyl group having 2 to 50 carbon atoms, an unsubstituted alkynyl group having 2 to 50 carbon atoms, an unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, —Si(R.sub.901)(R.sub.902)(R.sub.903), —O—(R.sub.904), —S—(R.sub.905), —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, an unsubstituted aryl group having 6 to 50 ring carbon atoms, and an unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0187] R.sub.901 to R.sub.907 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0188] When two or more R.sub.901 are present, the two or more R.sub.901 are mutually the same or different,

[0189] when two or more R.sub.902 are present, the two or more R.sub.902 are mutually the same or different,

[0190] when two or more R.sub.903 are present, the two or more R.sub.903 are mutually the same or different,

[0191] when two or more R.sub.904 are present, the two or more R.sub.904 are mutually the same or different,

[0192] when two or more R.sub.905 are present, the two or more R.sub.905 are mutually the same or different,

[0193] when two or more R.sub.906 are present, the two or more R.sub.906 are mutually the same or different, and

[0194] when two or more R.sub.907 are present, the two or more R.sub.907 are mutually the same or different.

[0195] In an exemplary embodiment, a substituent for the substituted or unsubstituted group is selected from the group consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 ring carbon atoms, and a heterocyclic group having 5 to 50 ring atoms.

[0196] In an exemplary embodiment, a substituent for the substituted or unsubstituted group is selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an aryl group having 6 to 18 ring carbon atoms, and a heterocyclic group having 5 to 18 ring atoms.

[0197] Specific examples of the above optional substituent are the same as the specific examples of the substituent described in the above under the subtitle “Substituent Mentioned Herein.”

[0198] Unless otherwise specified herein, adjacent ones of the optional substituents may form a “saturated ring” or an “unsaturated ring,” preferably a substituted or unsubstituted saturated five-membered ring, a substituted or unsubstituted saturated six-membered ring, a substituted or unsubstituted unsaturated five-membered ring, or a substituted or unsubstituted unsaturated six-membered ring, more preferably a benzene ring.

[0199] Unless otherwise specified herein, the optional substituent may further include a substituent. Examples of the substituent for the optional substituent are the same as the examples of the optional substituent.

[0200] Herein, numerical ranges represented by “AA to BB” represent a range whose lower limit is the value (AA) recited before “to” and whose upper limit is the value (BB) recited after “to.”

First Exemplary Embodiment

Organic Electroluminescence Device

[0201] An organic electroluminescence device according to the exemplary embodiment includes an anode, a cathode, an emitting layer between the anode and the cathode, a first electron transporting layer between the cathode and the emitting layer, and a second electron transporting layer between the cathode and the first electron transporting layer. The first electron transporting layer is directly adjacent to the emitting layer. The second electron transporting layer is directly adjacent to the first electron transporting layer. The emitting layer contains a first compound represented by Formula (1) below. The first compound has at least one group represented by Formula (11) below. The first electron transporting layer contains a second compound represented by Formula (2) below. The second electron transporting layer contains a third compound represented by Formula (3) below.

[0202] The organic EL device according to the exemplary embodiment may include one or more organic layers in addition to the emitting layer and the first and second electron transporting layers. Examples of the organic layer include, for instance, at least one layer selected from the group consisting of a hole injecting layer, a hole transporting layer, an emitting layer, an electron injecting layer, an electron transporting layer, a hole blocking layer, and an electron blocking layer.

[0203] In the organic EL device according to the exemplary embodiment, the organic layer may consist of the emitting layer and the first and second electron transporting layers. Alternatively, the organic layer may further include, for instance, at least one layer selected from the group consisting of the hole injecting layer, the hole transporting layer, the electron injecting layer, the electron transporting layer, the hole blocking layer, and the electron blocking layer.

[0204] Hole Transporting Layer

[0205] The organic EL device according to the exemplary embodiment preferably includes a hole transporting layer between the anode and the emitting layer.

[0206] FIG. 1 schematically shows an exemplary arrangement of the organic EL device of the exemplary embodiment.

[0207] An organic EL device 1 includes a light-transmissive substrate 2, an anode 3, a cathode 4, and an organic layer 10 between the anode 3 and the cathode 4. The organic layer 10 includes a hole injecting layer 6, a hole transporting layer 7, an emitting layer 5, a first electron transporting layer 81, a second electron transporting layer 82, and an electron injecting layer 9, which are sequentially laminated on the anode 3.

[0208] Emitting Layer

[0209] The emitting layer is directly adjacent to the first electron transporting layer. The emitting layer contains the first compound represented by Formula (1) below.

[0210] In the organic EL device according to the exemplary embodiment, the first compound is preferably a host material in the emitting layer.

[0211] Preferably, the emitting layer of the organic EL device according to the exemplary embodiment contains a fourth compound that fluoresces.

[0212] In the organic EL device of the exemplary embodiment, when the emitting layer contains the first compound and the fourth compound, the first compound is preferably a host material (occasionally also referred to as a matrix material) and the fourth compound is preferably a dopant material (occasionally also referred to as a guest material, emitter or a luminescent material).

[0213] Herein, the “host material” refers to, for instance, a material that accounts for “50 mass % or more of the layer.” Accordingly, for instance, when the emitting layer contains the first compound represented by Formula (1) below as a host material, the emitting layer contains the first compound in an amount of 50 mass % or more of a total mass of the emitting layer. Alternatively, the “host material” may account for, for instance, 60 mass % or more of the layer, 70 mass % or more of the layer, 80 mass % or more of the layer, 90 mass % or more of the layer, or 95 mass % or more of the layer.

[0214] The emitting layer preferably does not contain a phosphorescent material as the dopant material.

[0215] Further, the emitting layer preferably does not contain a heavy metal complex and a phosphorescent rare earth metal complex. Examples of the heavy-metal complex herein include iridium complex, osmium complex, and platinum complex.

[0216] The emitting layer also preferably does not contain a metal complex.

Emitting Layers

[0217] An emitting layer of an organic EL device according to an exemplary embodiment may be formed by a plurality of emitting layers.

[0218] The emitting layer of an organic EL device according to an exemplary embodiment includes, for example, a first emitting layer and a second emitting layer between the first emitting layer and the first electron transporting layer. In this case, the organic EL device includes the first emitting layer, the second emitting layer, the first electron transporting layer, and the second electron transporting layer in this order from the anode, and the second emitting layer is directly adjacent to the first electron transporting layer. Preferably, the first emitting layer is directly adjacent to the second emitting layer.

[0219] FIG. 2 schematically shows another exemplary arrangement of the organic EL device according to the exemplary embodiment.

[0220] An organic EL device 1A includes a light-transmissive substrate 2, an anode 3, a cathode 4, and an organic layer 10 between the anode 3 and the cathode 4. The organic layer 10 includes a hole injecting layer 6, a hole transporting layer 7, an emitting layer 5, a first electron transporting layer 81, a second electron transporting layer 82, and an electron injecting layer 9, which are sequentially laminated on the anode 3. The emitting layer 5 further includes a first emitting layer 51 and a second emitting layer 52.

[0221] Preferably, the first and second emitting layers each independently further contain a fluorescent compound.

[0222] Preferably, the fluorescent compounds contained in the first and second emitting layers are compounds that emit light having a maximum peak wavelength in a range from 430 nm to 480 nm.

[0223] The first emitting layer contains the first compound represented by Formula (1) below.

[0224] The first emitting layer also preferably contains the fourth compound that fluoresces and the first compound represented by Formula (1). In that case, the first compound in the first emitting layer is preferably a host material (also referred to as a matrix material), and the fourth compound is preferably a dopant material (also referred to as a guest material, emitter, or luminescent material).

[0225] The second emitting layer preferably contains a fifth compound. The fifth compound is also preferably an anthracene derivative. The second emitting layer also preferably contains an anthracene derivative as the host material.

[0226] The fifth compound is also preferably a compound represented by Formula (2) below. The second emitting layer also preferably contains a compound represented by Formula (2) below as the host material.

[0227] The second emitting layer also preferably contains a sixth compound that fluoresces and the fifth compound. In that case, the fifth compound in the second emitting layer is preferably a host material (also referred to as a matrix material), and the sixth compound is preferably a dopant material (also referred to as a guest material, emitter, or luminescent material). The sixth compound that fluoresces and is contained in the second emitting layer can be the same compound as the aforementioned fourth compound. The fourth compound that fluoresces and is contained in the first emitting layer and the sixth compound that fluoresces and is contained in the second emitting layer are mutually the same or different. The fifth compound contained in the second emitting layer can be the same compound as the second compound represented by Formula (2) below. The compound that is represented by Formula (2) and is contained in the second emitting layer as the fifth compound, and the compound that is represented by Formula (2) and is contained in the first electron transporting layer as the second compound are mutually the same or different. When the second emitting layer contains an anthracene derivative or a compound represented by Formula (2) below, the composition of the second emitting layer is different from that of the first electron transporting layer.

[0228] More preferably, the first emitting layer contains a pyrene derivative as the host material, and the second emitting layer contains an anthracene derivative as the host material.

[0229] Preferably, the first and second emitting layers contain no phosphorescent material as the dopant material.

[0230] Further, the first and second emitting layers preferably contain no heavy metal complex and no phosphorescent rare earth metal complex. Examples of the heavy-metal complex herein include iridium complex, osmium complex, and platinum complex.

[0231] The first and second emitting layers also preferably contain no metal complex.

First Compound

[0232] The first compound is a compound represented by Formula (1) below. The first compound has at least one group represented by Formula (11) below.

##STR00029##

[0233] In Formula (1),

[0234] R.sub.101 to R.sub.110 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by Formula (11),

[0235] at least one of R.sub.101 to R.sub.110 is a group represented by Formula (11),

[0236] when a plurality of groups represented by Formula (11) are present, the plurality of groups represented by Formula (11) are mutually the same or different,

[0237] L.sub.101 is a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms,

[0238] Ar.sub.101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0239] mx is 0, 1, 2, 3, 4, or 5,

[0240] when two or more L.sub.101 are present, the two or more L.sub.101 are mutually the same or different,

[0241] when two or more Ar.sub.101 are present, the two or more Ar.sub.101 are mutually the same or different, and

[0242] * in Formula (11) represents a bonding position to a pyrene ring in Formula (1).

[0243] In the first compound represented by Formula (1), R.sub.901, R.sub.902, R.sub.903, R.sub.904, R.sub.905, R.sub.906, R.sub.907, R.sub.801, and R.sub.802 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0244] when a plurality of R.sub.901 are present, the plurality of Ram are mutually the same or different,

[0245] when a plurality of R.sub.902 are present, the plurality of R.sub.902 are mutually the same or different,

[0246] when a plurality of R.sub.903 are present, the plurality of R.sub.903 are mutually the same or different,

[0247] when a plurality of R.sub.904 are present, the plurality of R.sub.904 are mutually the same or different,

[0248] when a plurality of R.sub.905 are present, the plurality of R.sub.905 are mutually the same or different,

[0249] when a plurality of R.sub.906 are present, the plurality of R.sub.906 are mutually the same or different,

[0250] when a plurality of R.sub.907 are present, the plurality of R.sub.907 are mutually the same or different,

[0251] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different, and

[0252] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different.

[0253] Preferably, the group represented by Formula (11) is a group represented by Formula (111) below.

##STR00030##

[0254] In Formula (111),

[0255] X.sub.1 is CR.sub.123R.sub.124, an oxygen atom, a sulfur atom, or NR.sub.125,

[0256] L.sub.111 and L.sub.112 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms,

[0257] ma is 0, 1, 2, 3, or 4,

[0258] mb is 0, 1, 2, 3, or 4,

[0259] ma+mb is 0, 1, 2, 3, or 4,

[0260] Ar.sub.101 represents the same as Ar.sub.101 in Formula (11),

[0261] R.sub.121, R.sub.122, R.sub.123, R.sub.124, and R.sub.125 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0262] mc is 3,

[0263] three R.sub.121 are mutually the same or different,

[0264] md is 3, and

[0265] three R.sub.122 are mutually the same or different.

[0266] Among positions *1 to *8 of carbon atoms in a cyclic structure represented by Formula (111a) below in a group represented by Formula (111), L.sub.111 is bonded to one of the positions *1 to *4, R.sub.121 is bonded to each of three positions of the rest of *1 to *4, L.sub.112 is bonded to one of the positions *5 to *8, and R.sub.122 is bonded to each of three positions of the rest of *5 to *8.

##STR00031##

[0267] For instance, in a group represented by Formula (111), when L.sub.111 is bonded to a carbon atom at a position *2 in the cyclic structure represented by Formula (111a) and L.sub.112 is bonded to a carbon atom at a position *7 in the cyclic structure represented by Formula (111a), the group represented by Formula (111) is represented by Formula (111b) below.

##STR00032##

[0268] In Formula (111b),

[0269] X.sub.1, L.sub.111, L.sub.112, ma, mb, Ar.sub.101, R.sub.121, R.sub.122, R.sub.123, R.sub.124 and R.sub.125 each independently represent the same as X.sub.1, L.sub.111, L.sub.112, ma, mb, Ar.sub.101, R.sub.121, R.sub.122, R.sub.123, R.sub.124 and R.sub.125 in Formula (111),

[0270] a plurality of R.sub.121 are mutually the same or different, and

[0271] a plurality of R.sub.122 are mutually the same or different.

[0272] In the organic EL device according to the exemplary embodiment, the group represented by Formula (111) is preferably a group represented by Formula (111b).

[0273] In the organic EL device according to the exemplary embodiment, it is preferable that ma is 0, 1, or 2; and mb is 0, 1, or 2.

[0274] In the organic EL device according to the exemplary embodiment, it is preferable that ma be 0 or 1 and that mb be 0 or 1.

[0275] The group represented by Formula (111) in which ma is 0 and mb is 1 is represented by Formula (111c) below.

##STR00033##

[0276] In Formula (111c), X.sub.1, L.sub.112, mc, md, Ar.sub.101, R.sub.121 and R.sub.122 each independently represent the same as X.sub.1, L.sub.112, mc, md, Ar.sub.101, R.sub.121 and R.sub.122 in Formula (111).

[0277] In the organic EL device according to the exemplary embodiment, Ar.sub.101 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0278] In the organic EL device of the exemplary embodiment, Ar.sub.101 is preferably a substituted or unsubstituted phenyl group, substituted or unsubstituted naphthyl group, substituted or unsubstituted biphenyl group, substituted or unsubstituted terphenyl group, substituted or unsubstituted pyrenyl group, substituted or unsubstituted phenanthryl group, or substituted or unsubstituted fluorenyl group.

[0279] In the organic EL device of the exemplary embodiment, Ar.sub.101 is also preferably a group represented by Formula (12), Formula (13), or Formula (14).

##STR00034##

[0280] In Formulae (12), (13), and (14),

[0281] R.sub.111 to R.sub.120 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.124, a group represented by —COOR.sub.125, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0282] * in Formulae (12), (13) and (14) represents a bonding position to L.sub.101 in Formula (11), or a bonding position to L.sub.112 in Formula (111), (111b), or (111c).

[0283] It is also preferable that R.sub.124 and R.sub.125 in Formulae (12), (13) and (14) each independently represent the same as R.sub.801 and R.sub.802 described above.

[0284] The first compound is preferably represented by Formula (101) below.

##STR00035##

[0285] In Formula (101),

[0286] R.sub.101 to R.sub.120 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0287] one of R.sub.101 to R.sub.110 represents a bonding position to L.sub.101, and one of R.sub.111 to R.sub.120 represents a bonding position to L.sub.101,

[0288] L.sub.101 is a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms,

[0289] mx is 0, 1, 2, 3, 4, or 5, and

[0290] when two or more L.sub.101 are present, the two or more L.sub.101 are mutually the same or different.

[0291] The compound represented by Formula (101) in which R.sub.103 is a bonding position to L.sub.101 and R.sub.120 is a bonding position to L.sub.101 is represented by Formula (101A) below.

##STR00036##

[0292] In Formula (101A), R.sub.101, R.sub.102, R.sub.104 to R.sub.119, L.sub.101 and mx respectively represent the same as R.sub.101, R.sub.102, R.sub.104 to R.sub.119, L.sub.101 and mx in Formula (101).

[0293] In the organic EL device of the exemplary embodiment, L.sub.101 is preferably a single bond or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0294] In the organic EL device of the exemplary embodiment, the first compound is preferably represented by Formula (102) below.

##STR00037##

[0295] In Formula (102),

[0296] R.sub.101 to R.sub.120 each independently represent the same as R.sub.101 to R.sub.120 of Formula (101),

[0297] one of R.sub.101 to R.sub.110 represents a bonding position to L.sub.111, and one of R.sub.111 to R.sub.120 represents a bonding position to L.sub.112,

[0298] X.sub.1 is CR.sub.123R.sub.124, an oxygen atom, a sulfur atom, or NR.sub.125,

[0299] L.sub.111 and L.sub.112 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms,

[0300] ma is 0, 1, 2, 3, or 4,

[0301] mb is 0, 1, 2, 3, or 4,

[0302] ma+mb is 0, 1, 2, 3, or 4,

[0303] R.sub.121, R.sub.122, R.sub.123, R.sub.124, and R.sub.125 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0304] mc is 3,

[0305] three R.sub.121 are mutually the same or different,

[0306] md is 3, and

[0307] three R.sub.122 are mutually the same or different.

[0308] In the compound represented by Formula (102), it is preferable that ma is 0, 1, or 2; and mb is 0, 1, or 2.

[0309] In the compound represented by Formula (102), it is preferable that ma is 0 or 1 and mb is 0 or 1.

[0310] In the organic EL device of the exemplary embodiment, two or more of R.sub.101 to R.sub.110 are preferably a group represented by Formula (11).

[0311] In the organic EL device of the exemplary embodiment, it is preferable that two or more of R.sub.101 to R.sub.110 are a group represented by Formula (11) and Ar.sub.101 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0312] In the organic EL device according to the exemplary embodiment,

[0313] Ar.sub.101 is not a substituted or unsubstituted pyrenyl group,

[0314] L.sub.101 is not a substituted or unsubstituted pyrenylene group, and

[0315] the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms for R.sub.101 to R.sub.110 not being the group represented by Formula (11) is not a substituted or unsubstituted pyrenyl group.

[0316] In the organic EL device according to the exemplary embodiment, it is preferable that R.sub.101 to R.sub.110 not being the group represented by Formula (11) each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0317] In the organic EL device according to the exemplary embodiment, it is preferable that R.sub.101 to R.sub.110 not being the group represented by Formula (11) each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms.

[0318] In the organic EL device according to the exemplary embodiment, R.sub.101 to R.sub.110 not being the group represented by Formula (11) each preferably represent a hydrogen atom.

[0319] In the organic EL device of the exemplary embodiment, X.sub.1 preferably represents CR.sub.123R.sub.124. For instance, when X.sub.1 is CR.sub.123R.sub.124, the group represented by Formula (111) is represented by Formula (111d) below.

##STR00038##

[0320] In Formula (111d), L.sub.111, L.sub.112, ma, mb, ma+mb, Ar.sub.101, R.sub.121, R.sub.122, R.sub.123, R.sub.124, R.sub.125, mc and md represent the same as L.sub.111, L.sub.112, ma, mb, ma+mb, Ar.sub.101, R.sub.121, R.sub.122, R.sub.123, R.sub.124, R.sub.125, mc and md in Formula (111).

[0321] In the organic EL device of the exemplary embodiment, it is preferable that R.sub.123 and R.sub.124 are not bonded to each other.

[0322] In the organic EL device of the exemplary embodiment, at least one of L.sub.111 or L.sub.112 preferably represents a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms.

[0323] In the first compound, examples of the substituent for the “substituted or unsubstituted group” also preferably do not include a substituted or unsubstituted pyrenyl group.

[0324] In an exemplary embodiment, the first compound is a compound having only one pyrene ring in a molecule (sometimes referred to as a monopyrene compound).

[0325] In an exemplary embodiment, the first compound is a compound having only two pyrene rings in a molecule (sometimes referred to as a bispyrene compound).

[0326] In the first compound, all groups described as “substituted or unsubstituted” are preferably “unsubstituted” groups.

Manufacturing Method of First Compound

[0327] The first compound can be manufactured by a known method. The first compound can also be manufactured based on a known method through a known alternative reaction using a known material(s) tailored for the target compound.

Specific Examples of First Compound

[0328] Specific examples of the first compound include the following compounds. It should however be noted that the invention is not limited to the specific examples of the first compound.

##STR00039## ##STR00040## ##STR00041## ##STR00042## ##STR00043## ##STR00044## ##STR00045## ##STR00046## ##STR00047## ##STR00048## ##STR00049## ##STR00050## ##STR00051## ##STR00052## ##STR00053## ##STR00054## ##STR00055## ##STR00056## ##STR00057## ##STR00058## ##STR00059##

##STR00060## ##STR00061## ##STR00062## ##STR00063## ##STR00064## ##STR00065## ##STR00066## ##STR00067## ##STR00068## ##STR00069## ##STR00070## ##STR00071## ##STR00072## ##STR00073## ##STR00074## ##STR00075## ##STR00076## ##STR00077## ##STR00078## ##STR00079## ##STR00080## ##STR00081## ##STR00082## ##STR00083##

Fourth and Sixth Compounds

[0329] The fourth compound and the sixth compound each independently represent at least one compound selected from the group consisting of a compound represented by Formula (3A) below, a compound represented by Formula (4) below, a compound represented by Formula (5) below, a compound represented by Formula (6) below, a compound represented by Formula (7) below, a compound represented by Formula (8) below, a compound represented by Formula (9) below, and a compound represented by Formula (10) below.

Compound Represented by Formula (3A)

[0330] A compound represented by Formula (3A) will be described below.

##STR00084##

[0331] In Formula (3A),

[0332] at least one combination of adjacent two or more of Ra.sub.301, Ra.sub.302, Ra.sub.303, Ra.sub.304, Ra.sub.305, Ra.sub.306, Ra.sub.307, Ra.sub.308, Ra.sub.309 and Ra.sub.310 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0333] at least one of Ra.sub.301 to Ra.sub.310 is a monovalent group represented by Formula (31A) below,

[0334] Ra.sub.301 to Ra.sub.310 forming neither the monocyclic ring nor the fused ring and not being the monovalent group represented by Formula (31A) each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

##STR00085##

[0335] In Formula (31A),

[0336] Ara.sub.301 and Ara.sub.302 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0337] La.sub.301, La.sub.302, and La.sub.303 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, and

[0338] * represents a bonding position to a pyrene ring in Formula (3A).

[0339] In the fourth and sixth compounds, R.sub.901, R.sub.902, R.sub.903, R.sub.904, R.sub.905, R.sub.906, and R.sub.907 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0340] when a plurality of R.sub.901 are present, the plurality of R.sub.901 are mutually the same or different,

[0341] when a plurality of R.sub.902 are present, the plurality of R.sub.902 are mutually the same or different,

[0342] when a plurality of R.sub.903 are present, the plurality of R.sub.903 are mutually the same or different,

[0343] when a plurality of R.sub.904 are present, the plurality of R.sub.904 are mutually the same or different,

[0344] when a plurality of R.sub.905 are present, the plurality of R.sub.905 are mutually the same or different,

[0345] when a plurality of R.sub.906 are present, the plurality of R.sub.906 are mutually the same or different, and

[0346] when a plurality of R.sub.907 are present, the plurality of R.sub.907 are mutually the same or different.

[0347] In Formula (3A), two of Ra.sub.301 to Ra.sub.310 are each preferably a group represented by Formula (31A).

[0348] In an exemplary embodiment, the compound represented by Formula (3A) is a compound represented by Formula (33A) below.

##STR00086##

[0349] In Formula (33A),

[0350] Ra.sub.311, Ra.sub.312, Ra.sub.313, Ra.sub.314, Ra.sub.315, Ra.sub.316, Ra.sub.317 and Ra.sub.318 each independently represent the same as Ra.sub.301 to Ra.sub.310 in Formula (3A) that are not the monovalent group represented by Formula (31A),

[0351] La.sub.312, La.sub.313, La.sub.314, La.sub.315, and La.sub.316 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, and

[0352] Ara.sub.312, Ara.sub.313, Ara.sub.315, and Ara.sub.316 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0353] In Formula (31A), La.sub.301 is preferably a single bond, and La.sub.302 and La.sub.303 are preferably a single bond.

[0354] In an exemplary embodiment, the compound represented by Formula (3A) is represented by Formula (34A) or Formula (35A) below.

##STR00087##

[0355] In Formula (34A,

[0356] Ra.sub.311 to Ra.sub.318 each independently represent the same as Ra.sub.301 to Ra.sub.310 in Formula (3A) that are not the monovalent group represented by Formula (31A),

[0357] La.sub.312, La.sub.313, La.sub.315 and La.sub.316 each independently represent the same as La.sub.312, La.sub.313, La.sub.315 and La.sub.316 in Formula (33A), and

[0358] Ara.sub.312, Ara.sub.313, Ara.sub.315 and Ara.sub.316 each independently represent the same as Ara.sub.312, Ara.sub.313, Ara.sub.315 and Ara.sub.316 in Formula (33A).

##STR00088##

[0359] In Formula (35A),

[0360] Ra.sub.311 to Ra.sub.318 each independently represent the same as Ra.sub.301 to Ra.sub.310 in Formula (3A) that are not the monovalent group represented by Formula (31A), and

[0361] Ara.sub.312, Ara.sub.313, Ara.sub.315 and Ara.sub.316 each independently represent the same as Ara.sub.312, Ara.sub.313, Ara.sub.315 and Ara.sub.316 in Formula (33A).

[0362] In Formula (31A), at least one of Ara.sub.301 or Ara.sub.302 is preferably a group represented by Formula (36A) below.

[0363] In Formulae (33A) to (35A), at least one of Ara.sub.312 or Ara.sub.313 is preferably a group represented by Formula (36A).

[0364] In Formulae (33A) to (35A), at least one of Ara.sub.315 or Ara.sub.316 is preferably a group represented by Formula (36A).

##STR00089##

[0365] In Formula (36A),

[0366] Xa.sub.3 represents an oxygen atom or a sulfur atom,

[0367] at least one combination of adjacent two or more of Ra.sub.321 to Ra.sub.327 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0368] Ra.sub.321, Ra.sub.322, Ra.sub.323, Ra.sub.324, Ra.sub.325, Ra.sub.326 and Ra.sub.327 not forming the monocyclic ring and not forming the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0369] * represents a bonding position to La.sub.302, La.sub.303, La.sub.312, La.sub.313, La.sub.315 or La.sub.316.

[0370] Xa.sub.3 is preferably an oxygen atom.

[0371] Preferably, at least one of Ra.sub.321 to Ra.sub.327 is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0372] In Formula (31A), Ara.sub.301 is preferably a group represented by Formula (36A) and Ara.sub.302 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0373] In Formulae (33A) to (35A), Ara.sub.312 is preferably a group represented by Formula (36A) and Ara.sub.313 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0374] In Formulae (33A) to (35A), Ara.sub.315 is preferably a group represented by Formula (36A) and Ara.sub.316 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0375] In an exemplary embodiment, a compound represented by Formula (3A) is represented by Formula (37A).

##STR00090##

[0376] In Formula (37A),

[0377] Ra.sub.311 to Ra.sub.318 each independently represent the same as Ra.sub.301 to Ra.sub.310 in Formula (3A) that are not the monovalent group represented by Formula (31A),

[0378] at least one combination of adjacent two or more of Ra.sub.321 to Ra.sub.327 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0379] at least one combination of adjacent two or more of Ra.sub.341 to Ra.sub.347 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0380] Ra.sub.321 to Ra.sub.327 and Ra.sub.341 to Ra.sub.347 not forming the monocyclic ring and not forming the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0381] Ra.sub.331 to Ra.sub.335 and Ra.sub.351 to Ra.sub.355 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0382] Specific examples of the compound represented by Formula (3A) include compounds shown below.

##STR00091## ##STR00092## ##STR00093## ##STR00094## ##STR00095## ##STR00096## ##STR00097## ##STR00098## ##STR00099## ##STR00100## ##STR00101## ##STR00102## ##STR00103## ##STR00104## ##STR00105## ##STR00106## ##STR00107## ##STR00108## ##STR00109## ##STR00110## ##STR00111## ##STR00112## ##STR00113##

[0383] Compound Represented by Formula (4)

[0384] A compound represented by Formula (4) will be described below.

##STR00114##

[0385] In Formula (4),

[0386] Z each independently represent CRa or a nitrogen atom,

[0387] A1 ring and A2 ring each independently represent a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms,

[0388] when a plurality of Ra are present, at least one combination of adjacent two or more of Ra are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0389] n21 and n22 are each independently 0, 1, 2, 3 or 4,

[0390] when a plurality of Rb are present, at least one combination of adjacent two or more of Rb are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0391] when a plurality of Rc are present, at least one combination of adjacent two or more of Rc are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0392] Ra, Rb, and Rc not forming the monocyclic ring and not forming the fused ring each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0393] The “aromatic hydrocarbon ring” for the A1 ring and A2 ring has the same structure as the compound formed by introducing a hydrogen atom to the “aryl group” described above.

[0394] Ring atoms of the “aromatic hydrocarbon ring” for the A1 ring and the A2 ring include two carbon atoms on a fused bicyclic structure at the center of Formula (4).

[0395] Specific examples of the “substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms” include a compound formed by introducing a hydrogen atom to the “aryl group” described in the specific example group G1.

[0396] The “heterocycle” for the A1 ring and A2 ring has the same structure as the compound formed by introducing a hydrogen atom to the “heterocyclic group” described above.

[0397] Ring atoms of the “heterocycle” for the A1 ring and the A2 ring include two carbon atoms on a fused bicyclic structure at the center of Formula (4).

[0398] Specific examples of the “substituted or unsubstituted heterocycle having 5 to 50 ring atoms” include a compound formed by introducing a hydrogen atom to the “heterocyclic group” described in the specific example group G2.

[0399] Rb is bonded to any one of carbon atoms forming the aromatic hydrocarbon ring for the A1 ring or any one of the atoms forming the heterocycle for the A1 ring.

[0400] Rc is bonded to any one of carbon atoms forming the aromatic hydrocarbon ring for the A2 ring or any one of the atoms forming the heterocycle for the A2 ring.

[0401] At least one of Ra, Rb, or Rc is preferably a group represented by Formula (4a) below. More preferably, at least two of Ra, Rb, and Rc are each a group represented by Formula (4a).

[Formula 73]

*-L.sub.401-Ar.sub.401  (4a)

[0402] In Formula (4a),

[0403] L.sub.401 is a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, and

[0404] Ar.sub.401 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or a group represented by Formula (4b) below.

##STR00115##

[0405] In Formula (4b),

[0406] L.sub.402 and L.sub.403 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms,

[0407] a combination of Ar.sub.402 and Ar.sub.403 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0408] Ar.sub.402 and Ar.sub.403 not forming the monocyclic ring and not forming the fused ring each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0409] In an exemplary embodiment, the compound represented by Formula (4) is represented by Formula (42) below.

##STR00116##

[0410] In Formula (42),

[0411] at least one combination of adjacent two or more of R.sub.401 to R.sub.411 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0412] R.sub.401 to R.sub.411 neither forming the monocyclic ring nor forming the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0413] At least one of R.sub.401 to R.sub.411 is preferably a group represented by Formula (4a). More preferably, at least two of R.sub.401 to R.sub.411 are each a group represented by Formula (4a).

[0414] R.sub.404 and R.sub.411 are each preferably a group represented by Formula (4a).

[0415] In an exemplary embodiment, the compound represented by Formula (4) is a compound formed by bonding a moiety represented by Formula (4-1) or Formula (4-2) below to the A1 ring.

[0416] Further, in an exemplary embodiment, the compound represented by Formula (42) is a compound formed by bonding the moiety represented by Formula (4-1) or Formula (4-2) to the ring bonded with R.sub.404 to R.sub.407.

##STR00117##

[0417] In Formula (4-1), two bonds * are each independently bonded to the ring-forming carbon atom of the aromatic hydrocarbon ring or the ring atom of the heterocycle for the A1 ring in Formula (4), or bonded to one of R.sub.404 to R.sub.407 in Formula (42).

[0418] In Formula (4-2), three bonds * are each independently bonded to the ring-forming carbon atom of the aromatic hydrocarbon ring or the ring atom of the heterocycle for the A1 ring in Formula (4), or bonded to one of R.sub.404 to R.sub.407 in Formula (42).

[0419] At least one combination of adjacent two or more of R.sub.421 to R.sub.427 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded.

[0420] At least one combination of adjacent two or more of R.sub.431 to R.sub.438 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded.

[0421] R.sub.421 to R.sub.427 and R.sub.431 to R.sub.438 forming neither the monocyclic ring nor the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0422] In an exemplary embodiment, the compound represented by Formula (4) is a compound represented by Formula (41-3), Formula (41-4) or Formula (41-5) below.

##STR00118##

[0423] In Formulae (41-3), (41-4), and (41-5),

[0424] A1 ring is as defined for Formula (4),

[0425] R.sub.421 to R.sub.427 each independently represent the same as R.sub.421 to R.sub.427 in Formula (4-1), and

[0426] R.sub.440 to R.sub.448 each independently represent the same as R.sub.401 to R.sub.411 in Formula (42).

[0427] In an exemplary embodiment, a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms for the A1 ring in Formula (41-5) is a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted fluorene ring.

[0428] In an exemplary embodiment, a substituted or unsubstituted heterocycle having 5 to 50 ring atoms for the A1 ring in Formula (41-5) is a substituted or unsubstituted dibenzofuran ring, a substituted or unsubstituted carbazole ring, or a substituted or unsubstituted dibenzothiophene ring.

[0429] In an exemplary embodiment, the compound represented by Formula (4) or Formula (42) is a compound selected from the group consisting of compounds represented by Formulae (461) to (467) below.

##STR00119## ##STR00120## ##STR00121##

[0430] In Formulae (461), (462), (463), (464), (465), (466), and (467),

[0431] R.sub.421 to R.sub.427 each independently represent the same as R.sub.421 to R.sub.427 in Formula (4-1),

[0432] R.sub.431 to R.sub.438 each independently represent the same as R.sub.431 to R.sub.438 in Formula (4-2),

[0433] R.sub.440 to R.sub.448 and R.sub.451 to R.sub.454 each independently represent the same as R.sub.401 to R.sub.411 in Formula (42),

[0434] X.sub.4 is an oxygen atom, NR.sub.801, or C(R.sub.802)(R.sub.803),

[0435] R.sub.801, R.sub.802, and R.sub.803 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0436] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different,

[0437] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different, and

[0438] when a plurality of R.sub.803 are present, the plurality of R.sub.803 are mutually the same or different.

[0439] In an exemplary embodiment, in the compound represented by Formula (42), at least one combination of adjacent two or more of R.sub.401 to R.sub.411 are mutually bonded to form a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring. The compound represented by Formula (42) in the exemplary embodiment is described in detail as a compound represented by Formula (45).

Compound Represented by Formula (45)

[0440] A compound represented by Formula (45) will be described.

##STR00122##

[0441] In Formula (45)

[0442] two or more of combinations selected from the group consisting of a combination of R.sub.461 and R.sub.462, a combination of R.sub.462 and R.sub.463, a combination of R.sub.464 and R.sub.465, a combination of R.sub.465 and R.sub.466, a combination of R.sub.466 and R.sub.467, a combination of R.sub.465 and R.sub.469, a combination of R.sub.469 and R.sub.470, and a combination of R.sub.470 and R.sub.471 are mutually bonded to form a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring.

[0443] However, the combination of R.sub.461 and R.sub.462 and the combination of R.sub.462 and R.sub.463; the combination of R.sub.464 and R.sub.465 and the combination of R.sub.465 and R.sub.466; the combination of R.sub.465 and R.sub.466 and the combination of R.sub.466 and R.sub.467; the combination Of R.sub.468 and R.sub.469 and the combination of R.sub.469 and R.sub.470; and the combination of R.sub.469 and R.sub.470 and the combination of R.sub.470 and R.sub.471 do not form a ring at the same time.

[0444] At least two rings formed by R.sub.461 to R.sub.471 are mutually the same or different.

[0445] R.sub.461 to R.sub.471 forming neither the monocyclic ring nor the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0446] In Formula (45), R.sub.n and R.sub.n+1 (n being an integer selected from 461, 462, 464 to 466, and 468 to 470) are mutually bonded to form a substituted or unsubstituted monocyclic ring or fused ring together with two ring-forming carbon atoms bonded with R.sub.n and R.sub.n+1. The ring is preferably formed of atoms selected from the group consisting of a carbon atom, an oxygen atom, a sulfur atom, and a nitrogen atom, and is made of 3 to 7, more preferably 5 or 6 atoms.

[0447] The number of the above cyclic structures in the compound represented by Formula (45) is, for instance, 2, 3, or 4. The two or more of the cyclic structures may be present on the same benzene ring on the basic skeleton represented by Formula (45) or may be present on different benzene rings. For instance, when three cyclic structures are present, each of the cyclic structures may be present on corresponding one of the three benzene rings of Formula (45).

[0448] Examples of the above cyclic structures in the compound represented by Formula (45) include structures represented by Formulae (451) to (460) below.

##STR00123##

[0449] In Formulae (451) to (457),

[0450] each combination of *1 and *2, *3 and *4, *5 and *6, *7 and *8, *9 and *10, *11 and *12, and *13 and *14 represent the two ring-forming carbon atoms respectively bonded with R.sub.n and R.sub.n+1,

[0451] the ring-forming carbon atom bonded with R.sub.n may be any one of the two ring-forming carbon atoms represented by *1 and *2, *3 and *4, *5 and *6, *7 and *8, *9 and *10, *11 and *12, and *13 and *14,

[0452] X.sub.45 is C(R.sub.4512)(R.sub.4513), NR.sub.4514, an oxygen atom, or a sulfur atom,

[0453] at least one combination of adjacent two or more of R.sub.4501 to R.sub.4506 and R.sub.4512 to R.sub.4513 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0454] R.sub.4501 to R.sub.4514 not forming the monocyclic ring and not forming the fused ring each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

##STR00124##

[0455] In Formulae (458) to (460),

[0456] each combination of *1 and *2, and *3 and *4 represent the two ring-forming carbon atoms each bonded with R.sub.n and R.sub.n+1, the ring-forming carbon atom bonded with R.sub.n may be any one of the two ring-forming carbon atoms represented by *1 and *2, or *3 and *4,

[0457] X.sub.45 is C(R.sub.4512)(R.sub.4513), NR.sub.4514, an oxygen atom, or a sulfur atom,

[0458] at least one combination of adjacent two or more of R.sub.4512 to R.sub.4513 and R.sub.4515 to R.sub.4525 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0459] R.sub.4512 to R.sub.4513, R.sub.4515 to R.sub.4521 and R.sub.4522 to R.sub.4525 not forming the monocyclic ring and not forming the fused ring, and R.sub.4514 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

[0460] In Formula (45), it is preferable that at least one of R.sub.462, R.sub.464, R.sub.465, R.sub.470 or R.sub.471 (preferably, at least one of R.sub.462, R.sub.465 or R.sub.470, more preferably R.sub.462) is a group not forming the cyclic structure.

[0461] (i) A substituent, if present, of the cyclic structure formed by R.sub.n and R.sub.n+1 of Formula (45), (ii) R.sub.461 to R.sub.471 not forming the cyclic structure in Formula (45), and (iii) R.sub.4501 to R.sub.4514, R.sub.4515 to R.sub.4525 in Formulae (451) to (460) are preferably each independently any one of group selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or groups represented by Formulae (461) to (464).

##STR00125##

[0462] In Formulae (461) to (464),

[0463] R.sub.d each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0464] X.sub.46 is C(R.sub.801)(R.sub.802), NR.sub.803, an oxygen atom, or a sulfur atom,

[0465] R.sub.801, R.sub.802, and R.sub.803 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0466] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different,

[0467] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different,

[0468] when a plurality of R.sub.803 are present, the plurality of R.sub.803 are mutually the same or different,

[0469] p1 is 5,

[0470] p2 is 4,

[0471] p3 is 3,

[0472] p4 is 7, and

[0473] in Formulae (461) to (464), * each independently represents a bonding position to a cyclic structure.

[0474] In the fourth and sixth compounds, R.sub.901 to R.sub.907 represent the same as R.sub.901 to R.sub.907 as described above.

[0475] In an exemplary embodiment, the compound represented by Formula (45) is represented by one of Formulae (45-1) to (45-6) below.

##STR00126## ##STR00127##

[0476] In Formulae (45-1) to (45-6),

[0477] rings d to i are each dependently a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring, and

[0478] R.sub.461 to R.sub.471 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

[0479] In an exemplary embodiment, the compound represented by Formula (45) is represented by one of Formulae (45-7) to (45-12) below.

##STR00128## ##STR00129##

[0480] In Formulae (45-7) to (45-12),

[0481] rings d to f, k and j are each dependently a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring, and

[0482] R.sub.461 to R.sub.471 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

[0483] In an exemplary embodiment, the compound represented by Formula (45) is represented by one of formulae (45-13) to (45-21) below.

##STR00130## ##STR00131## ##STR00132##

[0484] In Formulae (45-13) to (45-21),

[0485] rings d to k are each dependently a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring, and

[0486] R.sub.461 to R.sub.471 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

[0487] When the ring g or the ring h further has a substituent, examples of the substituent include a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a group represented by Formula (461), a group represented by Formula (463), and a group represented by Formula (464).

[0488] In an exemplary embodiment, the compound represented by Formula (45) is represented by one of Formulae (45-22) to (45-25) below.

##STR00133##

[0489] In Formulae (45-22) to (45-25),

[0490] X.sub.46 and X.sub.47 are each independently C(R.sub.801)(R.sub.802), NR.sub.803, an oxygen atom or a sulfur atom, and

[0491] R.sub.461 to R.sub.471 and R.sub.481 to R.sub.488 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45).

[0492] R.sub.801, R.sub.802, and R.sub.803 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0493] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different,

[0494] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different, and

[0495] when a plurality of R.sub.803 are present, the plurality of R.sub.803 are mutually the same or different.

[0496] In an exemplary embodiment, the compound represented by Formula (45) is represented by Formula (45-26) below.

##STR00134##

[0497] In Formula (45-26),

[0498] X.sub.46 is C(R.sub.801)(R.sub.802), NR.sub.803, an oxygen atom, or a sulfur atom,

[0499] R.sub.463, R.sub.464, R.sub.467, R.sub.468, R.sub.471, and R.sub.481 to R.sub.492 each independently represent the same as R.sub.461 to R.sub.471 in Formula (45),

[0500] R.sub.801, R.sub.802, and R.sub.803 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0501] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different,

[0502] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different, and

[0503] when a plurality of R.sub.803 are present, the plurality of R.sub.803 are mutually the same or different.

[0504] Specific examples of the compound represented by Formula (4) include compounds shown below. In the specific examples below, Ph represents a phenyl group, and D represents a deuterium atom.

##STR00135## ##STR00136## ##STR00137## ##STR00138## ##STR00139## ##STR00140## ##STR00141## ##STR00142## ##STR00143## ##STR00144## ##STR00145## ##STR00146## ##STR00147## ##STR00148## ##STR00149## ##STR00150## ##STR00151##

##STR00152## ##STR00153## ##STR00154## ##STR00155## ##STR00156## ##STR00157## ##STR00158## ##STR00159## ##STR00160## ##STR00161## ##STR00162## ##STR00163## ##STR00164##

Compound Represented by Formula (5)

[0505] A compound represented by Formula (5) will be described below. The compound represented by Formula (5) corresponds to a compound represented by Formula (41-3) described above.

##STR00165##

[0506] In Formula (5),

[0507] at least one combination of adjacent two or more of R.sub.501 to R.sub.507 and R.sub.511 to R.sub.517 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0508] R.sub.501 to R.sub.507 and R.sub.511 to R.sub.517 forming neither the monocyclic ring nor the fused ring each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0509] R.sub.521 and R.sub.522 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0510] “A combination of adjacent two or more of R.sub.501 to R.sub.507 and R.sub.511 to R.sub.517” refers to, for instance, a combination of R.sub.501 and R.sub.502, a combination of R.sub.502 and R.sub.503, a combination of R.sub.503 and R.sub.504, a combination of R.sub.505 and R.sub.506, a combination of R.sub.506 and R.sub.507, and a combination of R.sub.501, R.sub.502, and R.sub.503.

[0511] In an exemplary embodiment, at least one, preferably two of R.sub.501 to R.sub.507 and R.sub.511 to R.sub.517 are each a group represented by —N(R.sub.906)(R.sub.907).

[0512] In an exemplary embodiment, R.sub.501 to R.sub.507 and R.sub.511 to R.sub.517 each independently represent a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0513] In an exemplary embodiment, the compound represented by Formula (5) is a compound represented by Formula (52).

##STR00166##

[0514] In Formula (52),

[0515] at least one combination of adjacent two or more of R.sub.531 to R.sub.534 and R.sub.541 to R.sub.544 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0516] R.sub.531 to R.sub.534, R.sub.541 to R.sub.544 forming neither the monocyclic ring nor the fused ring, and R.sub.551 and R.sub.552 each independently represent a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0517] R.sub.561 to R.sub.564 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0518] In an exemplary embodiment, the compound represented by Formula (5) is a compound represented by Formula (53).

##STR00167##

[0519] In Formula (53), R.sub.551, R.sub.552 and R.sub.561 to R.sub.564 each independently represent the same as R.sub.551, R.sub.552 and R.sub.561 to R.sub.564 in Formula (52).

[0520] In an exemplary embodiment, R.sub.561 to R.sub.564 in Formulae (52) and (53) are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms (preferably a phenyl group).

[0521] In an exemplary embodiment, R.sub.521 and R.sub.522 in Formula (5) and R.sub.551 and R.sub.552 in Formulae (52) and (53) are hydrogen atoms.

[0522] In an exemplary embodiment, the substituent for “substituted or unsubstituted” in Formulae (5), (52) and (53) is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0523] Specific examples of the compound represented by Formula (5) include compounds shown below.

##STR00168## ##STR00169## ##STR00170## ##STR00171## ##STR00172## ##STR00173## ##STR00174## ##STR00175## ##STR00176## ##STR00177## ##STR00178## ##STR00179## ##STR00180## ##STR00181## ##STR00182## ##STR00183## ##STR00184## ##STR00185##

##STR00186## ##STR00187## ##STR00188## ##STR00189## ##STR00190## ##STR00191## ##STR00192## ##STR00193## ##STR00194## ##STR00195## ##STR00196## ##STR00197## ##STR00198## ##STR00199## ##STR00200## ##STR00201## ##STR00202## ##STR00203## ##STR00204## ##STR00205## ##STR00206## ##STR00207## ##STR00208## ##STR00209## ##STR00210## ##STR00211## ##STR00212##

Compound Represented by Formula (6)

[0524] A compound represented by Formula (6) will be described below.

##STR00213##

[0525] In Formula (6),

[0526] a ring, b ring and c ring are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms,

[0527] R.sub.601 and R.sub.602 are each independently bonded to the a ring, b ring or c ring to form a substituted or unsubstituted heterocycle, or not bonded thereto to form no substituted or unsubstituted heterocycle, and

[0528] R.sub.601 and R.sub.602 not forming the substituted or unsubstituted heterocycle are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0529] The a ring, b ring and c ring are each a ring (a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms) fused with the fused bicyclic structure formed of a boron atom and two nitrogen atoms at the center of Formula (6).

[0530] The “aromatic hydrocarbon ring” for the a, b, and c rings has the same structure as the compound formed by introducing a hydrogen atom to the “aryl group” described above.

[0531] Ring atoms of the “aromatic hydrocarbon ring” for the a ring include three carbon atoms on the fused bicyclic structure at the center of Formula (6).

[0532] Ring atoms of the “aromatic hydrocarbon ring” for the b ring and the c ring include two carbon atoms on a fused bicyclic structure at the center of Formula (6).

[0533] Specific examples of the “substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms” include a compound formed by introducing a hydrogen atom to the “aryl group” described in the specific example group G1.

[0534] The “heterocycle” for the a, b, and c rings has the same structure as the compound formed by introducing a hydrogen atom to the “heterocyclic group” described above.

[0535] Ring atoms of the “heterocycle” for the a ring include three carbon atoms on the fused bicyclic structure at the center of Formula (6). Ring atoms of the “heterocycle” for the b ring and the c ring include two carbon atoms on a fused bicyclic structure at the center of Formula (6). Specific examples of the “substituted or unsubstituted heterocycle having 5 to 50 ring atoms” include a compound formed by introducing a hydrogen atom to the “heterocyclic group” described in the specific example group G2.

[0536] R.sub.601 and R.sub.602 are optionally each independently bonded with the a ring, b ring, or c ring to form a substituted or unsubstituted heterocycle. The “heterocycle” in this arrangement includes the nitrogen atom on the fused bicyclic structure at the center of Formula (6). The heterocycle in the above arrangement optionally include a hetero atom other than the nitrogen atom. R.sub.601 and R.sub.602 bonded with the a ring, b ring, or c ring specifically means that atoms forming R.sub.601 and R.sub.602 are bonded with atoms forming the a ring, b ring, or c ring. For instance, R.sub.601 may be bonded to the a ring to form a bicyclic (or tri-or-more cyclic) fused nitrogen-containing heterocycle, in which the ring including R.sub.601 and the a ring are fused. Specific examples of the nitrogen-containing heterocycle include a compound corresponding to the nitrogen-containing bi(or-more)cyclic fused heterocyclic group in the specific example group G2.

[0537] The same applies to R.sub.601 bonded with the b ring, R.sub.602 bonded with the a ring, and R.sub.602 bonded with the c ring.

[0538] In an exemplary embodiment, the a ring, b ring and c ring in Formula (6) are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms.

[0539] In an exemplary embodiment, the a ring, b ring and c ring in Formula (6) are each independently a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring.

[0540] In an exemplary embodiment, R.sub.601 and R.sub.602 in Formula (6) are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0541] In an exemplary embodiment, the compound represented by Formula (6) is a compound represented by Formula (62) below.

##STR00214##

[0542] In Formula (62),

[0543] R.sub.601A is bonded with at least one of R.sub.611 or R.sub.621 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0544] R.sub.602A is bonded with at least one of R.sub.613 or R.sub.614 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0545] R.sub.601A and R.sub.602A not forming the substituted or unsubstituted heterocycle are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0546] at least one combination of adjacent two or more of R.sub.611 to R.sub.621 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0547] R.sub.611 to R.sub.621 not forming the substituted or unsubstituted heterocycle, not forming the monocyclic ring, and not forming the fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0548] R.sub.601A and R.sub.602A in Formula (62) are groups corresponding to R.sub.601 and R.sub.602 in Formula (6), respectively.

[0549] For instance, R.sub.601A and R.sub.611 are optionally bonded with each other to form a bicyclic (or tri-or-more cyclic) fused nitrogen-containing heterocycle, in which the ring including R.sub.601A and R.sub.611 and a benzene ring corresponding to the a ring are fused. Specific examples of the nitrogen-containing heterocycle include a compound corresponding to the nitrogen-containing bi(or-more)cyclic fused heterocyclic group in the specific example group G2. The same applies to R.sub.601A bonded with R.sub.621, R.sub.602A bonded with R.sub.613, and R.sub.602A bonded with R.sub.614.

[0550] At least one combination of adjacent two or more of R.sub.611 to R.sub.621 may be mutually bonded to form a substituted or unsubstituted monocyclic ring, or mutually bonded to form a substituted or unsubstituted fused ring.

[0551] For instance, R.sub.611 and R.sub.612 are optionally mutually bonded to form a structure in which a benzene ring, indole ring, pyrrole ring, benzofuran ring, benzothiophene ring or the like is fused to the six-membered ring bonded with R.sub.611 and R.sub.612, the resultant fused ring forming a naphthalene ring, carbazole ring, indole ring, dibenzofuran ring, or dibenzothiophene ring, respectively.

[0552] In an exemplary embodiment, R.sub.611 to R.sub.621 not contributing to ring formation are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0553] In an exemplary embodiment, R.sub.611 to R.sub.621 not contributing to ring formation are each independently a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0554] In an exemplary embodiment, R.sub.611 to R.sub.621 not contributing to ring formation are each independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0555] In an exemplary embodiment, R.sub.611 to R.sub.621 not contributing to ring formation are each independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, and

[0556] at least one of R.sub.611 to R.sub.621 is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0557] In an exemplary embodiment, the compound represented by Formula (62) is a compound represented by Formula (63) below.

##STR00215##

[0558] In Formula (63),

[0559] R.sub.631 is bonded with R.sub.646 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0560] R.sub.633 is bonded with R.sub.647 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0561] R.sub.634 is bonded with R.sub.651 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0562] R.sub.641 is bonded with R.sub.642 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0563] at least one combination of adjacent two or more of R.sub.631 to R.sub.651 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0564] R.sub.631 to R.sub.651 not forming the substituted or unsubstituted heterocycle, not forming the monocyclic ring, and not forming the fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0565] R.sub.631 are optionally mutually bonded with R.sub.646 to form a substituted or unsubstituted heterocycle. For instance, R.sub.631 and R.sub.646 are optionally bonded with each other to form a tri-or-more cyclic fused nitrogen-containing heterocycle, in which a benzene ring bonded with R.sub.646, a ring including a nitrogen atom, and a benzene ring corresponding to the a ring are fused. Specific examples of the nitrogen-containing heterocycle include a compound corresponding to the nitrogen-containing tri(-or-more)cyclic fused heterocyclic group in the specific example group G2. The same applies to R.sub.633 bonded with R.sub.647, R.sub.634 bonded with R.sub.651, and R.sub.641 bonded with R.sub.642.

[0566] In an exemplary embodiment, R.sub.631 to R.sub.651 not contributing to ring formation are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0567] In an exemplary embodiment, R.sub.631 to R.sub.651 not contributing to ring formation are each independently a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0568] In an exemplary embodiment, R.sub.631 to R.sub.651 not contributing to ring formation are each independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0569] In an exemplary embodiment, R.sub.631 to R.sub.651 not contributing to ring formation are each independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; and

[0570] at least one of R.sub.631 to R.sub.651 is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0571] In an exemplary embodiment, the compound represented by Formula (63) is a compound represented by Formula (63A) below.

##STR00216##

[0572] In Formula (63A),

[0573] R.sub.661 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and

[0574] R.sub.662 to R.sub.665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0575] In an exemplary embodiment, R.sub.661 to R.sub.665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0576] In an exemplary embodiment, R.sub.661 to R.sub.665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0577] In an exemplary embodiment, the compound represented by Formula (63) is a compound represented by Formula (63B) below.

##STR00217##

[0578] In Formula (63B),

[0579] R.sub.671 and R.sub.672 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and

[0580] R.sub.673 to R.sub.675 each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0581] In an exemplary embodiment, the compound represented by Formula (63) is a compound represented by Formula (63B′) below.

##STR00218##

[0582] In Formula (63B′), R.sub.672 to R.sub.675 each independently represent the same as R.sub.672 to R.sub.675 in Formula (63B).

[0583] In an exemplary embodiment, at least one of R.sub.671 to R.sub.675 is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0584] In an exemplary embodiment,

[0585] R.sub.672 is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and

[0586] R.sub.671 and R.sub.673 to R.sub.675 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a group represented by —N(R.sub.906)(R.sub.907), or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0587] In an exemplary embodiment, the compound represented by Formula (63) is a compound represented by Formula (63C) below.

##STR00219##

[0588] In Formula (63C),

[0589] R.sub.681 and R.sub.682 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0590] R.sub.683 to R.sub.686 each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0591] In an exemplary embodiment, the compound represented by Formula (63) is a compound represented by Formula (63C′) below.

##STR00220##

[0592] In Formula (63C′), R.sub.683 to R.sub.686 each independently represent the same as R.sub.683 to R.sub.686 in Formula (63C).

[0593] In an exemplary embodiment, R.sub.681 to R.sub.686 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0594] In an exemplary embodiment, R.sub.681 to R.sub.686 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0595] The compound represented by Formula (6) is producible by initially bonding the a ring, b ring and c ring with linking groups (a group including N—R.sub.601 and a group including N—R.sub.602) to form an intermediate (first reaction), and bonding the a ring, b ring and c ring with a linking group (a group including a boron atom) to form a final product (second reaction). In the first reaction, an amination reaction (e.g. Buchwald-Hartwig reaction) is applicable. In the second reaction, Tandem Hetero-Friedel-Crafts Reactions or the like is applicable.

[0596] Specific examples of the compound represented by Formula (6) are shown below. It should however be noted that these specific examples are merely exemplary and do not limit the compound represented by Formula (6).

##STR00221## ##STR00222## ##STR00223## ##STR00224## ##STR00225## ##STR00226## ##STR00227## ##STR00228## ##STR00229## ##STR00230## ##STR00231## ##STR00232## ##STR00233## ##STR00234## ##STR00235## ##STR00236## ##STR00237## ##STR00238##

##STR00239## ##STR00240## ##STR00241## ##STR00242## ##STR00243## ##STR00244## ##STR00245## ##STR00246## ##STR00247## ##STR00248## ##STR00249## ##STR00250## ##STR00251## ##STR00252## ##STR00253## ##STR00254## ##STR00255##

Compound Represented by Formula (7)

[0597] A compound represented by Formula (7) will be described below.

##STR00256##

[0598] In Formula (7),

[0599] r ring is a ring represented by Formula (72) or Formula (73), the r ring being fused with adjacent ring(s) at any position(s),

[0600] q ring and s ring are each independently a ring represented by Formula (74) and fused with adjacent ring(s) at any position(s),

[0601] p ring and t ring are each independently a structure represented by Formula (75) or Formula (76) and fused with adjacent ring(s) at any position(s),

[0602] X.sub.7 is an oxygen atom, a sulfur atom, or NR.sub.702,

[0603] when a plurality of R.sub.701 are present, adjacent ones of the plurality of R.sub.701 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0604] R.sub.701 and R.sub.702 not forming the monocyclic ring and not forming the fused ring are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0605] Ar.sub.701 and Ar.sub.702 each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0606] L.sub.701 is a substituted or unsubstituted alkylene group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenylene group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynylene group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms,

[0607] m1 is 0, 1, or 2,

[0608] m2 is 0, 1, 2, 3, or 4,

[0609] each m3 independently represents 0, 1, 2, or 3,

[0610] each m4 independently represents 0, 1, 2, 3, 4, or 5,

[0611] when a plurality of R.sub.701 are present, the plurality of R.sub.701 are mutually the same or different,

[0612] when a plurality of X.sub.7 are present, the plurality of X.sub.7 are mutually the same or different,

[0613] when a plurality of R.sub.702 are present, the plurality of R.sub.702 are mutually the same or different,

[0614] when a plurality of Ar.sub.701 are present, the plurality of Ar.sub.701 are mutually the same or different,

[0615] when a plurality of Ar.sub.702 are present, the plurality of Ar.sub.702 are mutually the same or different, and

[0616] when a plurality of L.sub.701 are present, the plurality of L.sub.701 are mutually the same or different.

[0617] In Formula (7), each of the p ring, q ring, r ring, s ring, and t ring is fused with an adjacent ring(s) sharing two carbon atoms. The fused position and orientation are not limited but may be defined as required.

[0618] In an exemplary embodiment, in Formula (72) or Formula (73) representing the r ring, m1=0 or m2=0 is satisfied.

[0619] In an exemplary embodiment, the compound represented by Formula (7) is represented by any one of Formulae (71-1) to (71-6) below.

##STR00257## ##STR00258##

[0620] In Formulae (71-1) to (71-6), R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1, and m3 respectively represent the same as R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1, and m3 in Formula (7).

[0621] In an exemplary embodiment, the compound represented by Formula (7) is represented by any one of Formulae (71-11) to (71-13) below.

##STR00259##

[0622] In Formulae (71-11) to (71-13), R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1, m3 and m4 respectively represent the same as R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1, m3 and m4 in Formula (7).

[0623] In an exemplary embodiment, the compound represented by Formula (7) is represented by any one of Formulae (71-21) to (71-25) below.

##STR00260## ##STR00261##

[0624] In Formulae (71-21) to (71-25), R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1 and m4 respectively represent the same as R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, m1 and m4 in Formula (7).

[0625] In an exemplary embodiment, the compound represented by Formula (7) is represented by any one of Formulae (71-31) to (71-33) below.

##STR00262##

[0626] In Formulae (71-31) to (71-33), R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, and m2 to m4 respectively represent the same as R.sub.701, X.sub.7, Ar.sub.701, Ar.sub.702, L.sub.701, and m2 to m4 in Formula (7).

[0627] In an exemplary embodiment, Ar.sub.701 and Ar.sub.702 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0628] In an exemplary embodiment, one of Ar.sub.701 and Ar.sub.702 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and the other of Ar.sub.701 and Ar.sub.702 is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0629] Specific examples of the compound represented by Formula (7) include compounds shown below.

##STR00263## ##STR00264## ##STR00265## ##STR00266## ##STR00267## ##STR00268## ##STR00269## ##STR00270## ##STR00271## ##STR00272## ##STR00273## ##STR00274## ##STR00275## ##STR00276## ##STR00277## ##STR00278## ##STR00279##

Compound Represented by Formula (8)

[0630] A compound represented by Formula (8) will be described below.

##STR00280##

[0631] In Formula (8),

[0632] at least one combination of R.sub.801 and R.sub.802, R.sub.802 and R.sub.803, or R.sub.803 and R.sub.804 are mutually bonded to form a divalent group represented by Formula (82) below, or not mutually bonded, and

[0633] at least one combination of R.sub.805 and R.sub.806, R.sub.806 and R.sub.807, or R.sub.807 and R.sub.808 are mutually bonded to form a divalent group represented by Formula (83) below, or not mutually bonded.

##STR00281##

[0634] At least one of R.sub.801 to R.sub.804 not forming the divalent group represented by Formula (82) or R.sub.811 to R.sub.814 is a monovalent group represented by Formula (84) below,

[0635] at least one of R.sub.805 to R.sub.808 not forming the divalent group represented by Formula (83) or R.sub.821 to R.sub.824 is a monovalent group represented by Formula (84) below,

[0636] X.sub.8 is CR.sub.81R.sub.82, an oxygen atom, a sulfur atom, or NR.sub.809, and a combination of R.sub.81 and R.sub.82 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0637] R.sub.801 to R.sub.808 not forming the divalent group represented by Formula (82) or (83) and not being the monovalent group represented by Formula (84), R.sub.811 to R.sub.814 and R.sub.821 to R.sub.824 not being the monovalent group represented by Formula (84), R.sub.81 and R.sub.82 not forming the substituted or unsubstituted monocyclic ring and not forming the substituted or unsubstituted fused ring, and R.sub.809 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

##STR00282##

[0638] In Formula (84),

[0639] A.sub.801 and Ar.sub.802 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0640] L.sub.801 to L.sub.803 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, or a divalent linking group formed by bonding two, three or four groups selected from the group consisting of a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, and

[0641] * in Formulae (84) represents a bonding position to the cyclic structure represented by Formula (8) or a bonding position to the group represented by Formula (82) or (83).

[0642] It is also preferable that at least one combination of R.sub.801 and R.sub.802, R.sub.802 and R.sub.803, or R.sub.803 and R.sub.804 are mutually bonded, and R.sub.805 and R.sub.806, R.sub.806 and R.sub.807, and R.sub.807 and R.sub.808 are not mutually bonded.

[0643] It is also preferable that R.sub.801 and R.sub.802, R.sub.802 and R.sub.803, and R.sub.803 and R.sub.804 are not mutually bonded, and at least one combination of R.sub.805 and R.sub.806, R.sub.806 and R.sub.807, or R.sub.807 and R.sub.808 are mutually bonded.

[0644] It is also preferable that at least one combination of R.sub.801 and R.sub.802, R.sub.802 and R.sub.803, or R.sub.803 and R.sub.804 are mutually bonded to form a divalent group represented by Formula (82), and at least one combination of R.sub.805 and R.sub.806, R.sub.806 and R.sub.807, or R.sub.807 and R.sub.808 are mutually bonded to form a divalent group represented by Formula (83).

[0645] In Formula (8), the positions for the divalent group represented by Formula (82) and the divalent group represented by Formula (83) to be formed are not specifically limited, but the divalent groups may be formed at any possible positions on R.sub.801 to R.sub.808.

[0646] In an exemplary embodiment, the compound represented by Formula (8) is represented by any one of Formulae (81A-1) to (81A-3) below.

##STR00283##

[0647] In Formulae (81A-1) to (81A-3),

[0648] X.sub.8 represents the same as X.sub.8 in Formula (8),

[0649] at least one of R.sub.803, R.sub.804, or R.sub.811 to R.sub.814 in Formula (81A-1) is a monovalent group represented by Formula (84),

[0650] at least one of R.sub.801, R.sub.804, or R.sub.811 to R.sub.814 in Formula (81A-2) is a monovalent group represented by Formula (84),

[0651] at least one of R.sub.801, R.sub.802, or R.sub.811 to R.sub.814 in Formula (81A-3) is a monovalent group represented by Formula (84),

[0652] at least one of R.sub.805 to R.sub.808 in Formulae (81A-1) to (81A-3) is a monovalent group represented by Formula (84), and

[0653] R.sub.801 to R.sub.808 and R.sub.811 to R.sub.814 not being the monovalent group represented by Formula (84) are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0654] In an exemplary embodiment, the compound represented by Formula (8) is represented by any one of Formulae (81-1) to (81-6) below.

##STR00284## ##STR00285##

[0655] In Formulae (81-1) to (81-6),

[0656] X.sub.8 represents the same as X.sub.8 in Formula (8),

[0657] at least two of R.sub.801 to R.sub.824 are each a monovalent group represented by Formula (84), and

[0658] R.sub.801 to R.sub.824 that are not the monovalent group represented by Formula (84) are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0659] In an exemplary embodiment, the compound represented by Formula (8) is represented by any one of Formulae (81-7) to (81-18) below.

##STR00286## ##STR00287## ##STR00288##

[0660] In Formulae (81-7) to (81-18),

[0661] X.sub.8 represents the same as X.sub.8 in Formula (8),

[0662] * is a single bond to be bonded with the monovalent group represented by Formula (84); and

[0663] R.sub.801 to R.sub.824 each independently represent the same as R.sub.801 to R.sub.824 in Formulae (81-1) to (81-6) that are not the monovalent group represented by Formula (84).

[0664] R.sub.801 to R.sub.808 not forming the divalent group represented by Formula (82) or (83) and not being the monovalent group represented by Formula (84), and R.sub.811 to R.sub.814 and R.sub.821 to R.sub.824 not being the monovalent group represented by Formula (84) are preferably each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0665] The monovalent group represented by Formula (84) is preferably represented by Formula (85) or (86) below.

##STR00289##

[0666] In Formula (85),

[0667] R.sub.831 to R.sub.840 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0668] * in Formula (85) represents the same as * in Formula (84).

##STR00290##

[0669] In Formula (86),

[0670] Ar.sub.801, L.sub.801, and L.sub.803 represent the same as Ar.sub.801, L.sub.801, and L.sub.803 in Formula (84); and

[0671] HAr.sub.801 is a moiety represented by Formula (87) below.

##STR00291##

[0672] In Formula (87),

[0673] X.sub.81 represents an oxygen atom or a sulfur atom,

[0674] one of R.sub.841 to R.sub.848 is a single bond with L.sub.803, and

[0675] R.sub.841 to R.sub.848 not being the single bond are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0676] Specific examples of the compound represented by Formula (8) include compounds shown below as well as the compounds disclosed in WO 2014/104144.

##STR00292## ##STR00293## ##STR00294## ##STR00295## ##STR00296## ##STR00297## ##STR00298## ##STR00299## ##STR00300## ##STR00301## ##STR00302## ##STR00303## ##STR00304## ##STR00305## ##STR00306## ##STR00307## ##STR00308##

Compound Represented by Formula (9)

[0677] A compound represented by Formula (9) will be described below.

##STR00309##

[0678] In Formula (9),

[0679] A.sub.91 ring and A.sub.92 ring are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms, and

[0680] at least one of A.sub.91 ring or A.sub.92 ring is bonded with * in a structure represented by Formula (92) below.

##STR00310##

[0681] In Formula (92),

[0682] A.sub.93 ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms,

[0683] X.sub.9 is NR.sub.93, C(R.sub.94)(R.sub.95), Si(R.sub.96)(R.sub.97), Ge(R.sub.98)(R.sub.99), an oxygen atom, a sulfur atom, or a selenium atom,

[0684] R.sub.91 and R.sub.92 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded, and

[0685] R.sub.91 and R.sub.92 not forming the monocyclic ring and not forming the fused ring, and R.sub.93 to R.sub.99 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0686] At least one ring selected from the group consisting of A.sub.91 ring and A.sub.92 ring is bonded to a bond * of the structure represented by Formula (92). In other words, the ring-forming carbon atoms of the aromatic hydrocarbon ring or the ring atoms of the heterocycle of the A.sub.91 ring in an exemplary embodiment are bonded to the bonds * in the structure represented by Formula (92). Further, the ring-forming carbon atoms of the aromatic hydrocarbon ring or the ring atoms of the heterocycle of the A.sub.92 ring in an exemplary embodiment are bonded to the bonds * in the structure represented by Formula (92).

[0687] In an exemplary embodiment, the group represented by Formula (93) below is bonded to one or both of the A.sub.91 ring and A.sub.92 ring.

##STR00311##

[0688] In Formula (93),

[0689] Ar.sub.91 and Ar.sub.92 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0690] L.sub.91 to L.sub.93 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, or a divalent linking group formed by bonding two, three or four groups selected from the group consisting of a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, and

[0691] * in Formula (93) represents a bonding position to one of A.sub.91 ring and A.sub.92 ring.

[0692] In an exemplary embodiment, in addition to the A.sub.91 ring, the ring-forming carbon atoms of the aromatic hydrocarbon ring or the ring atoms of the heterocycle of the A.sub.92 ring are bonded to * in the structure represented by Formula (92). In this case, the structures represented by Formula (92) may be mutually the same or different.

[0693] In an exemplary embodiment, R.sub.91 and R.sub.92 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0694] In an exemplary embodiment, R.sub.91 and R.sub.92 are mutually bonded to form a fluorene structure.

[0695] In an exemplary embodiment, the rings A.sub.91 and A.sub.92 are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, example of which is a substituted or unsubstituted benzene ring.

[0696] In an exemplary embodiment, the ring A.sub.93 is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, example of which is a substituted or unsubstituted benzene ring.

[0697] In an exemplary embodiment, X.sub.9 is an oxygen atom or a sulfur atom.

[0698] Specific examples of the compound represented by Formula (9) include compounds shown below.

##STR00312## ##STR00313## ##STR00314## ##STR00315## ##STR00316## ##STR00317## ##STR00318## ##STR00319## ##STR00320## ##STR00321## ##STR00322## ##STR00323## ##STR00324## ##STR00325## ##STR00326## ##STR00327## ##STR00328##

Compound Represented by Formula (10)

[0699] A compound represented by Formula (10) will be described below.

##STR00329##

[0700] In Formula (10),

[0701] Ax.sub.1 ring is a ring represented by Formula (10a) and fused with adjacent ring(s) at any position(s),

[0702] Ax.sub.2 ring is a ring represented by Formula (10b) and fused with adjacent ring(s) at any position(s),

[0703] two * in Formula (10b) are bonded to any position of Ax.sub.3 ring,

[0704] X.sub.A and X.sub.B are each independently C(R.sub.1003)(R.sub.1004), Si(R.sub.1005)(R.sub.1006), an oxygen atom, or a sulfur atom,

[0705] Ax.sub.3 ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocycle having 5 to 50 ring atoms,

[0706] Ar.sub.1001 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0707] R.sub.1001 to R.sub.1006 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0708] mx1 is 3 and mx2 is 2,

[0709] a plurality of R.sub.1001 are mutually the same or different,

[0710] a plurality of R.sub.1002 are mutually the same or different,

[0711] ax is 0, 1, or 2,

[0712] when ax is 0 or 1, the structures enclosed by brackets indicated by “3-ax” are mutually the same or different, and

[0713] when ax is 2, a plurality of Ar.sub.1001 are mutually the same or different.

[0714] In an exemplary embodiment, Ar.sub.1001 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0715] In an exemplary embodiment, Ax.sub.3 ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, example of which is a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted anthracene ring.

[0716] In an exemplary embodiment, R.sub.1003 and R.sub.1004 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0717] In an exemplary embodiment, ax is 1.

[0718] Specific examples of the compound represented by Formula (10) include compounds shown below.

##STR00330## ##STR00331## ##STR00332##

[0719] In an exemplary embodiment, the emitting layer contains, as the fourth compound or the sixth compound, at least one compound selected from the group consisting of a compound represented by Formula (4), a compound represented by Formula (5), a compound represented by Formula (7), a compound represented by Formula (8), a compound represented by Formula (9), and a compound represented by Formula (63a) below.

##STR00333##

[0720] In Formula (63a),

[0721] R.sub.631 is bonded with R.sub.646 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0722] R.sub.633 is bonded with R.sub.647 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0723] R.sub.634 is bonded with R.sub.651 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0724] R.sub.641 is bonded with R.sub.642 to form a substituted or unsubstituted heterocycle, or not bonded therewith to form no substituted or unsubstituted heterocycle,

[0725] at least one combination of adjacent two or more of R.sub.631 to R.sub.651 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0726] R.sub.631 to R.sub.651 not forming the substituted or unsubstituted heterocycle, not forming the monocyclic ring and not forming the fused ring are each independently a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0727] at least one of R.sub.631 to R.sub.651 not forming the substituted or unsubstituted heterocycle, not forming the monocyclic ring and not forming the fused ring is a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0728] In an exemplary embodiment, the compound represented by Formula (4) is a compound represented by Formula (41-3), Formula (41-4) or Formula (41-5), the A1 ring in Formula (41-5) being a substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms, or a substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms.

[0729] In an exemplary embodiment, the substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms in Formulae (41-3), (41-4) and (41-5) is a substituted or unsubstituted naphthalene ring, a substituted or unsubstituted anthracene ring, or a substituted or unsubstituted fluorene ring, and

[0730] the substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms is a substituted or unsubstituted dibenzofuran ring, a substituted or unsubstituted carbazole ring, or a substituted or unsubstituted dibenzothiophene ring.

[0731] In an exemplary embodiment, the substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms in Formula (41-3), (41-4) or (41-5) is a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted fluorene ring, and

[0732] the substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms is a substituted or unsubstituted dibenzofuran ring, a substituted or unsubstituted carbazole ring, or a substituted or unsubstituted dibenzothiophene ring.

[0733] In an exemplary embodiment, the compound represented by Formula (4) is selected from the group consisting of a compound represented by Formula (461) below, a compound represented by Formula (462) below, a compound represented by Formula (463) below, a compound represented by Formula (464) below, a compound represented by Formula (465) below, a compound represented by Formula (466) below, and a compound represented by Formula (467) below.

##STR00334## ##STR00335## ##STR00336##

[0734] In Formulae (461) to (467),

[0735] at least one combination of adjacent two or more of R.sub.421 to R.sub.427, R.sub.431 to R.sub.436, R.sub.440 to R.sub.448, and R.sub.451 to R.sub.454 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0736] R.sub.437, R.sub.438, and R.sub.421 to R.sub.427, R.sub.431 to R.sub.436, R.sub.440 to R.sub.448, and R.sub.451 to R.sub.454 not forming the monocyclic ring and not forming the fused ring are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0737] X.sub.4 is an oxygen atom, NR.sub.801, or C(R.sub.802)(R.sub.803),

[0738] R.sub.801, R.sub.802, and R.sub.803 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,

[0739] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different,

[0740] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different, and

[0741] when a plurality of R.sub.803 are present, the plurality of R.sub.803 are mutually the same or different.

[0742] In an exemplary embodiment, R.sub.421 to R.sub.427 and R.sub.440 to R.sub.448 each independently represent a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0743] In an exemplary embodiment, R.sub.421 to R.sub.427 and R.sub.440 to R.sub.447 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, and a substituted or unsubstituted heterocyclic group having 5 to 18 ring atoms.

[0744] In an exemplary embodiment, the compound represented by Formula (41-3) is a compound represented by Formula (41-3-1) below.

##STR00337##

[0745] In Formula (41-3-1), R.sub.423, R.sub.425, R.sub.426, R.sub.442, R.sub.444 and R.sub.445 each independently represent the same as R.sub.423, R.sub.425, R.sub.426, R.sub.442, R.sub.444 and R.sub.445 in Formula (41-3).

[0746] In an exemplary embodiment, the compound represented by Formula (41-3) is represented by Formula (41-3-2) below.

##STR00338##

[0747] In Formula (41-3-2), R.sub.421 to R.sub.427 and R.sub.440 to R.sub.448 each independently represent the same as R.sub.421 to R.sub.427 and R.sub.440 to R.sub.448 in Formula (41-3), and at least one of R.sub.421 to R.sub.427 or R.sub.440 to R.sub.446 is a group represented by —N(R.sub.906)(R.sub.907).

[0748] In an exemplary embodiment, two of R.sub.421 to R.sub.427 and R.sub.440 to R.sub.446 in Formula (41-3-2) are each a group represented by —N(R.sub.906)(R.sub.907).

[0749] In an exemplary embodiment, the compound represented by Formula (41-3-2) is a compound represented by Formula (41-3-3) below.

##STR00339##

[0750] In Formula (41-3-3), R.sub.421 to R.sub.424, R.sub.440 to R.sub.443, R.sub.447, and R.sub.448 each independently represent the same as R.sub.421 to R.sub.424, R.sub.440 to R.sub.443, R.sub.447, and R.sub.448 in

[0751] Formula (41-3), and

[0752] R.sub.A, R.sub.B, R.sub.C, and R.sub.D are each independently a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 18 ring atoms.

[0753] In an exemplary embodiment, the compound represented by Formula (41-3-3) is a compound represented by Formula (41-3-4) below.

##STR00340##

[0754] In Formula (41-3-4), R.sub.447, R.sub.448, R.sub.A, R.sub.B, R.sub.C and R.sub.D each independently represent the same as R.sub.447, R.sub.448, R.sub.A, R.sub.B, R.sub.C and R.sub.D in Formula (41-3-3).

[0755] In an exemplary embodiment, R.sub.A, R.sub.B, R.sub.C, and R.sub.D are each independently a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms.

[0756] In an exemplary embodiment, R.sub.A, R.sub.B, R.sub.C, and R.sub.D are each independently a substituted or unsubstituted phenyl group.

[0757] In an exemplary embodiment, R.sub.447 and R.sub.448 are each a hydrogen atom.

[0758] In an exemplary embodiment, the substituent for “substituted or unsubstituted” group in each of the formulae is an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted alkenyl group having 2 to 50 carbon atoms, an unsubstituted alkynyl group having 2 to 50 carbon atoms, an unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, —Si(R.sub.901a)(R.sub.902a)(R.sub.903a), —O—(R.sub.904a), —S—(R.sub.905a), —N(R.sub.906a)(R.sub.907a), a halogen atom, a cyano group, a nitro group, an unsubstituted aryl group having 6 to 50 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0759] R.sub.901a to R.sub.907a each independently represent a hydrogen atom, an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted aryl group having 6 to 50 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0760] when two or more R.sub.901a are present, the two or more R.sub.901a are mutually the same or different,

[0761] when two or more R.sub.902a are present, the two or more R.sub.902a are mutually the same or different,

[0762] when two or more R.sub.903a are present, the two or more R.sub.903a are mutually the same or different,

[0763] when two or more Ra.sub.904a are present, the two or more R.sub.904a are mutually the same or different,

[0764] when two or more R.sub.905a are present, the two or more R.sub.905a are mutually the same or different,

[0765] when two or more R.sub.906a are present, the two or more R.sub.906a are mutually the same or different, and

[0766] when two or more R.sub.907a are present, the two or more R.sub.907a are mutually the same or different.

[0767] In an exemplary embodiment, the substituent for “substituted or unsubstituted” group in each of the formulae is an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted aryl group having 6 to 50 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0768] In an exemplary embodiment, the substituent for “substituted or unsubstituted” group in each of the formulae is an unsubstituted alkyl group having 1 to 18 carbon atoms, an unsubstituted aryl group having 6 to 18 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 18 ring atoms.

[0769] In the organic EL device according to the exemplary embodiment, the fourth compound is preferably a compound that emits light having a maximum peak wavelength in a range from 430 nm to 480 nm.

[0770] In the organic EL device according to the exemplary embodiment, the sixth compound is preferably a compound that emits light having a maximum peak wavelength in a range from 430 nm to 480 nm.

[0771] A measurement method of the maximum peak wavelength of a compound is as follows. A toluene solution of a measurement target compound at a concentration ranging from 10.sup.−6 mol/L to 10.sup.−5 mol/L is prepared and put in a quartz cell. An emission spectrum (ordinate axis: luminous intensity, abscissa axis: wavelength) of the thus-obtained sample is measured at a normal temperature (300K). The emission spectrum is measurable using a spectrophotometer (machine name: F-7000) manufactured by Hitachi High-Tech Science Corporation. It should be noted that the machine for measuring the emission spectrum is not limited to the machine used herein.

[0772] A peak wavelength of the emission spectrum exhibiting the maximum luminous intensity is defined as the maximum peak wavelength. Herein, the maximum peak wavelength of fluorescence is sometimes referred to as the maximum fluorescence peak wavelength (FL-peak).

[0773] In the fourth and sixth compounds, all groups described as “substituted or unsubstituted” groups are preferably “unsubstituted” groups.

[0774] In the organic EL device of the exemplary embodiment, when the emitting layer contains the first compound and the fourth compound, a singlet energy S.sub.1(H1) of the first compound and a singlet energy S.sub.1(D4) of the fourth compound preferably satisfy a relationship of a numerical formula (Numerical Formula 1) below.

S.sub.1(H1)>S.sub.1(D4)  (Numerical Formula 1)

[0775] In the organic EL device of the exemplary embodiment, when the emitting layer contains the fifth compound and the sixth compound, a singlet energy S.sub.1(H5) of the fifth compound and a singlet energy S.sub.1(D6) of the sixth compound preferably satisfy a relationship of a numerical formula (Numerical Formula 1A) below.

S.sub.1(H5)>S.sub.1(D6)  (Numerical Formula 1A)

[0776] Singlet Energy S.sub.1

[0777] A method of measuring a singlet energy S.sub.1 with use of a solution (occasionally referred to as a solution method) is exemplified by a method below.

[0778] A toluene solution of a measurement target compound at a concentration ranging from 10.sup.−5 mol/L to 10.sup.−4 mol/L is prepared and put in a quartz cell. An absorption spectrum (ordinate axis: absorption intensity, abscissa axis: wavelength) of the thus-obtained sample is measured at a normal temperature (300 K). A tangent is drawn to the fall of the absorption spectrum on the long-wavelength side, and a wavelength value λedge (nm) at an intersection of the tangent and the abscissa axis is assigned to a conversion equation (F2) below to calculate singlet energy.

S.sub.1 [eV]=1239.85/λedge  Conversion Formula (F2)

[0779] Any device for measuring absorption spectrum is usable. For instance, a spectrophotometer (U3310 manufactured by Hitachi, Ltd.) is usable.

[0780] The tangent to the fall of the absorption spectrum on the long-wavelength side is drawn as follows. While moving on a curve of the absorption spectrum in a long-wavelength direction from the local maximum closest to the long-wavelength side among the local maximums of the absorption spectrum, a tangent at each point on the curve is checked. An inclination of the tangent is decreased and increased in a repeated manner as the curve falls (i.e., a value of the ordinate axis is decreased). A tangent drawn at a point of the minimum inclination closest to the long-wavelength side (except when absorbance is 0.1 or less) is defined as the tangent to the fall of the absorption spectrum on the long-wavelength side.

[0781] The local maximum absorbance of 0.2 or less is not included in the above-mentioned local maximum absorbance closet to the long-wavelength side.

Film Thickness of Emitting Layer

[0782] A film thickness of the emitting layer of the organic EL device in the exemplary embodiment is preferably in a range from 5 nm to 50 nm, more preferably in a range from 7 nm to 50 nm, further preferably in a range from 10 nm to 50 nm. When the film thickness of the emitting layer is 5 nm or more, the emitting layer is easily formable and chromaticity is easily adjustable. When the film thickness of the emitting layer is 50 nm or less, a rise of the drive voltage is easily suppressible.

Content Ratios of Compounds in Emitting Layer

[0783] When the emitting layer contains the first compound and the fourth compound, a content ratio of each of the first compound and the fourth compound in the emitting layer preferably falls, for instance, within a range below.

[0784] The content ratio of the first compound is preferably in a range from 80 mass % to 99 mass %, more preferably in a range from 90 mass % to 99 mass %, further preferably in a range from 95 mass % to 99 mass %.

[0785] The content ratio of the fourth compound is preferably in a range from 1 mass % to 10 mass %, more preferably in a range from 1 mass % to 7 mass %, further preferably in a range from 1 mass % to 5 mass %.

[0786] The upper limit of the total of the content ratios of the first compound and the fourth compound in the emitting layer is 100 mass %.

[0787] It is not excluded that the emitting layer of the exemplary embodiment further contains a material(s) other than the first and fourth compounds.

[0788] The emitting layer may include a single type of the first compound or may include two or more types of the first compound. The emitting layer may include a single type of the fourth compound or may include two or more types of the fourth compound.

[0789] The content ratios of first and fourth compounds described above also apply to a case where the first emitting layer contains first and fourth compounds.

[0790] It is not excluded that the first emitting layer of the exemplary embodiment further contains a material(s) other than the first and fourth compounds.

[0791] The first emitting layer may include a single type of the first compound or may include two or more types of the first compound. The first emitting layer may include a single type of the fourth compound or may include two or more types of the fourth compound.

[0792] When the second emitting layer contains the fifth and sixth compounds, a content ratio of each of the fifth and sixth compounds in the second emitting layer preferably falls, for instance, within a range below.

[0793] The content ratio of the fifth compound is preferably in a range from 80 mass % to 99 mass %, more preferably in a range from 90 mass % to 99 mass %, further preferably in a range from 95 mass % to 99 mass %.

[0794] The content ratio of the sixth compound is preferably in a range from 1 mass % to 10 mass %, more preferably in a range from 1 mass % to 7 mass %, further preferably in a range from 1 mass % to 5 mass %.

[0795] The upper limit of the total of the content ratios of the fifth compound and the sixth compound in the second emitting layer is 100 mass %.

[0796] It is not excluded that the second emitting layer of the exemplary embodiment further contains a material(s) other than the fifth and sixth compounds.

[0797] The second emitting layer may include a single type of the fifth compound or may include two or more types of the fifth compound. The second emitting layer may include a single type of the sixth compound or may include two or more types of the sixth compound.

First Electron Transporting Layer

[0798] In the organic EL device of the exemplary embodiment, the first electron transporting layer is directly adjacent to the emitting layer. The first electron transporting layer contains the second compound represented by Formula (2) below.

Second Compound

[0799] The second compound represented by Formula (2) according to the exemplary embodiment will be described.

##STR00341##

[0800] In Formula (2),

[0801] R.sub.201 to R.sub.208 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0802] L.sub.201 and L.sub.202 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, and

[0803] Ar.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0804] In the second compound according to the exemplary embodiment, R.sub.901, R.sub.902, R.sub.903, R.sub.904, R.sub.905, R.sub.906, R.sub.907, R.sub.801, and R.sub.802 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0805] when a plurality of R.sub.901 are present, the plurality of R.sub.901 are mutually the same or different,

[0806] when a plurality of R.sub.902 are present, the plurality of R.sub.902 are mutually the same or different,

[0807] when a plurality of R.sub.903 are present, the plurality of R.sub.903 are mutually the same or different,

[0808] when a plurality of R.sub.904 are present, the plurality of R.sub.904 are mutually the same or different,

[0809] when a plurality of R.sub.905 are present, the plurality of R.sub.905 are mutually the same or different,

[0810] when a plurality of R.sub.906 are present, the plurality of R.sub.906 are mutually the same or different,

[0811] when a plurality of R.sub.907 are present, the plurality of R.sub.907 are mutually the same or different,

[0812] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different, and

[0813] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different.

[0814] In the organic EL device of the exemplary embodiment, it is preferable that R.sub.201 to R.sub.208 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a group represented by —S—(R.sub.905), a group represented by —N(R.sub.906)(R.sub.907), a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, a group represented by —C(═O)R.sub.801, a group represented by —COOR.sub.802, a halogen atom, a cyano group, or a nitro group,

[0815] L.sub.201 and L.sub.202 each independently represent a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, and

[0816] Ar.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0817] In the organic EL device of the exemplary embodiment, it is preferable that L.sub.201 and L.sub.202 each independently represent a single bond or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, and

[0818] Ar.sub.201 and Ar.sub.202 each independently represent a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0819] In the organic EL device of the exemplary embodiment, it is preferable that Ar.sub.201 and Ar.sub.202 each independently represent a phenyl group, naphthyl group, phenanthryl group, biphenyl group, terphenyl group, diphenylfluorenyl group, dimethylfluorenyl group, benzodiphenylfluorenyl group, benzodimethylfluorenyl group, dibenzofuranyl group, dibenzothienyl group, naphthobenzofuranyl group, or naphthobenzothienyl group.

[0820] In the organic EL device of the exemplary embodiment, the second compound represented by Formula (2) is preferably a compound represented by Formula (201), Formula (202), Formula (203), Formula (204), Formula (205), Formula (206), Formula (207), Formula (208), Formula (209) or Formula (210).

##STR00342## ##STR00343## ##STR00344## ##STR00345##

[0821] In Formulae (201) to (210),

[0822] L.sub.201 and Ar.sub.201 represent the same as L.sub.201 and Ar.sub.201 in Formula (2), and

[0823] R.sub.201 to R.sub.208 each independently represent the same as R.sub.201 to R.sub.208 in Formula (2).

[0824] It is also preferable that the second compound represented by Formula (2) is a compound represented by Formula (221), Formula (222), Formula (223), Formula (224), Formula (225), Formula (226), Formula (227), Formula (228), or

[0825] Formula (229) below.

##STR00346## ##STR00347## ##STR00348## ##STR00349## ##STR00350##

[0826] In Formulae (221), (222), (223), (224), (225), (226), (227), (228), and (229),

[0827] R.sub.201 and R.sub.203 to R.sub.208 each independently represent the same as R.sub.201 and R.sub.203 to R.sub.208 in Formula (2),

[0828] L.sub.201 and Ar.sub.201 represent the same as L.sub.201 and Ar.sub.201 in Formula (2),

[0829] L.sub.203 represents the same as L.sub.201 in Formula (2),

[0830] L.sub.203 and L.sub.201 are mutually the same or different,

[0831] Ar.sub.203 represents the same as Ar.sub.201 in Formula (2), and

[0832] Ar.sub.203 and Ar.sub.201 are mutually the same or different.

[0833] The second compound represented by Formula (2) is also preferably a compound represented by Formula (241), (242), (243), (244), (245), (246), (247), (248) or (249).

##STR00351## ##STR00352## ##STR00353## ##STR00354## ##STR00355##

[0834] In Formulae (241), (242), (243), (244), (245), (246), (247), (248), and (249),

[0835] R.sub.201, R.sub.202, and R.sub.204 to R.sub.208 each independently represent the same as R.sub.201, R.sub.202, and R.sub.204 to R.sub.208 in Formula (2),

[0836] L.sub.201 and Ar.sub.201 represent the same as L.sub.201 and Ar.sub.201 in Formula (2),

[0837] L.sub.203 represents the same as L.sub.201 in Formula (2),

[0838] L.sub.203 and L.sub.201 are mutually the same or different,

[0839] Ar.sub.203 represents the same as Ar.sub.201 in Formula (2), and

[0840] Ar.sub.203 and Ar.sub.201 are mutually the same or different.

[0841] In the second compound represented by Formula (2), R.sub.201 to R.sub.208 that are not represented by Formula (21) are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903).

[0842] L.sub.101 is preferably a single bond, or an unsubstituted arylene group having 6 to 22 ring carbon atoms, and

[0843] Ar.sub.101 is preferably a substituted or unsubstituted aryl group having 6 to 22 ring carbon atoms.

[0844] In the organic EL device according to the exemplary embodiment, it is preferable that R.sub.201 to R.sub.208 in the second compound represented by Formula (2) are each independently a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903).

[0845] In the organic EL device according to the exemplary embodiment, R.sub.201 to R.sub.208 in the second compound represented by Formula (2) are each preferably a hydrogen atom.

[0846] In the second compound, the groups specified to be “substituted or unsubstituted” are each preferably an “unsubstituted” group.

[0847] In the organic EL device according to the exemplary embodiment, the first electron transporting layer preferably consists of the second compound.

Manufacturing Method of Second Compound

[0848] The second compound can be manufactured by a known method. The second compound can also be manufactured based on a known method through a known alternative reaction using a known material(s) tailored for the target compound.

Specific Examples of Second Compound

[0849] Specific examples of the second compound include the following compounds. It should however be noted that the invention is not limited to the specific examples of the second compound.

##STR00356## ##STR00357## ##STR00358## ##STR00359## ##STR00360## ##STR00361## ##STR00362## ##STR00363## ##STR00364## ##STR00365## ##STR00366## ##STR00367## ##STR00368## ##STR00369## ##STR00370## ##STR00371## ##STR00372## ##STR00373## ##STR00374## ##STR00375##

##STR00376## ##STR00377## ##STR00378## ##STR00379## ##STR00380## ##STR00381## ##STR00382## ##STR00383## ##STR00384## ##STR00385## ##STR00386## ##STR00387## ##STR00388## ##STR00389## ##STR00390## ##STR00391## ##STR00392## ##STR00393## ##STR00394## ##STR00395## ##STR00396## ##STR00397## ##STR00398## ##STR00399## ##STR00400## ##STR00401## ##STR00402## ##STR00403## ##STR00404## ##STR00405## ##STR00406## ##STR00407## ##STR00408## ##STR00409## ##STR00410## ##STR00411## ##STR00412## ##STR00413## ##STR00414## ##STR00415## ##STR00416## ##STR00417## ##STR00418## ##STR00419## ##STR00420## ##STR00421## ##STR00422## ##STR00423## ##STR00424## ##STR00425## ##STR00426## ##STR00427## ##STR00428## ##STR00429## ##STR00430## ##STR00431## ##STR00432## ##STR00433## ##STR00434## ##STR00435##

Second Electron Transporting Layer

[0850] In the organic EL device of the exemplary embodiment, the second electron transporting layer is directly adjacent to the first electron transporting layer. The second electron transporting layer contains the third compound represented by Formula (3) below.

Third Compound

[0851] The third compound represented by Formula (3) will be described.

##STR00436##

[0852] In Formula (3),

[0853] Z.sub.31, Z.sub.32, and Z.sub.33 each independently represent a nitrogen atom, or CR.sub.3,

[0854] two or three of Z.sub.31, Z.sub.32, and Z.sub.33 are nitrogen atoms,

[0855] R.sub.3 is a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0856] A is a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 13 ring atoms,

[0857] B is a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 13 ring atoms,

[0858] L is a single bond, a substituted or unsubstituted (n+1)-valent aromatic hydrocarbon ring group having 6 to 18 ring carbon atoms, a substituted or unsubstituted (n+1)-valent heterocyclic group having 5 to 13 ring atoms, or a (n+1)-valent group having a structure in which two or more different substituted or unsubstituted aromatic hydrocarbon rings are bonded to each other,

[0859] C is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 60 ring atoms,

[0860] n is 1, 2, or 3,

[0861] when n is 2 or more, L is not a single bond, and

[0862] when n is 2 or more, a plurality of C are mutually the same or different.

[0863] In the third compound represented by Formula (3), R.sub.901, R.sub.902, R.sub.903, R.sub.904, R.sub.905, R.sub.906, R.sub.907, R.sub.801, and R.sub.802 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0864] when a plurality of R.sub.901 are present, the plurality of R.sub.901 are mutually the same or different,

[0865] when a plurality of R.sub.902 are present, the plurality of R.sub.902 are mutually the same or different,

[0866] when a plurality of R.sub.903 are present, the plurality of R.sub.903 are mutually the same or different,

[0867] when a plurality of R.sub.904 are present, the plurality of R.sub.904 are mutually the same or different,

[0868] when a plurality of R.sub.905 are present, the plurality of R.sub.905 are mutually the same or different,

[0869] when a plurality of R.sub.906 are present, the plurality of R.sub.906 are mutually the same or different,

[0870] when a plurality of R.sub.907 are present, the plurality of R.sub.907 are mutually the same or different,

[0871] when a plurality of R.sub.801 are present, the plurality of R.sub.801 are mutually the same or different, and

[0872] when a plurality of R.sub.802 are present, the plurality of R.sub.802 are mutually the same or different.

[0873] In the organic EL device of the exemplary embodiment, the third compound is preferably a compound represented by Formula (37).

##STR00437##

[0874] In Formula (37),

[0875] A, B and L represent the same as A, B and L defined in Formula (3),

[0876] Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 in Formula (3),

[0877] Cz is a group represented by Formula (Cz1), (Cz2), or (Cz3),

[0878] n is 1, 2, or 3, and

[0879] when n is 2 or 3, a plurality of Cz are mutually the same or different.

##STR00438##

[0880] In Formulae (Cz1), (Cz2), and (Cz3),

[0881] at least one combination of adjacent two or more of R.sub.311 to R.sub.318 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0882] at least one combination of adjacent two or more of R.sub.320 to R.sub.324 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0883] at least one combination of adjacent two or more of R.sub.330 to R.sub.334 and R.sub.X are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0884] at least one combination of adjacent two or more of R.sub.340 to R.sub.344 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0885] at least one combination of adjacent two or more of R.sub.351 to R.sub.358 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0886] R.sub.311 to R.sub.318, R.sub.320 to R.sub.324, R.sub.330 to R.sub.334, R.sub.X, R.sub.340 to R.sub.344 and R.sub.351 to R.sub.358 forming neither the substituted or unsubstituted monocyclic ring nor the substituted or unsubstituted fused ring each independently represent a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0887] n1, n2, and n3 are 3;

[0888] three R.sub.320 are mutually the same or different,

[0889] three R.sub.330 are mutually the same or different,

[0890] three R.sub.340 are mutually the same or different,

[0891] * in the formulae (Cz1), (Cz2), and (Cz3) is bonded to L, and

[0892] R.sub.901, R.sub.902, R.sub.903, and R.sub.904 represent the same as R.sub.901, R.sub.902, R.sub.903, and R.sub.904 in Formula (3).

[0893] In the organic EL device of the exemplary embodiment, the third compound is preferably a compound represented by Formula (37).

##STR00439##

[0894] In Formula (371),

[0895] A, B and L represent the same as A, B and L defined in Formula (3),

[0896] Cz represents the same as Cz defined in Formula (3),

[0897] n is 1, 2, or 3, and

[0898] when n is 2 or 3, a plurality of Cz are mutually the same or different.

[0899] In the organic EL device according to the exemplary embodiment, the third compound is preferably a compound represented by Formula (372) below.

##STR00440##

[0900] In Formula (372),

[0901] A and B represent the same as A and B defined in Formula (3),

[0902] Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 defined in Formula (3),

[0903] Cza and Czb each independently represent a group represented by Formula (Cz1), (Cz2), or (Cz3), and

[0904] L is a single bond, a substituted or unsubstituted trivalent aromatic hydrocarbon ring group having 6 to 18 ring carbon atoms, a substituted or unsubstituted trivalent heterocyclic group having 5 to 13 ring atoms, or a trivalent group having a structure in which two or more different substituted or unsubstituted aromatic hydrocarbon rings are bonded to each other.

[0905] In the organic EL device according to the exemplary embodiment, L is preferably a single bond, or a substituted or unsubstituted (n+1)-valent aromatic hydrocarbon ring group having 6 to 12 ring carbon atoms.

[0906] In the organic EL device according to the exemplary embodiment, the third compound is preferably a compound represented by Formula (36) below.

##STR00441##

[0907] In Formula (36),

[0908] A, B, and C represent the same as A, B, and C defined in Formula (3),

[0909] Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 defined in Formula (3),

[0910] at least one combination of adjacent two or more of R.sub.32 to R.sub.39 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0911] R.sub.32 to R.sub.39 forming neither the substituted or unsubstituted monocyclic ring nor the substituted or unsubstituted fused ring are each independently a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and

[0912] R.sub.901, R.sub.902, R.sub.903, and R.sub.904 represent the same as R.sub.901, R.sub.902, R.sub.903, and R.sub.904 defined in Formula (3).

[0913] In the organic EL device according to the exemplary embodiment, the third compound is preferably a compound represented by Formula (361) below.

##STR00442##

[0914] In Formula (361),

[0915] A and B represent the same as A and B defined in Formula (3),

[0916] Z.sub.31, Z.sub.32, and Z.sub.33 represent the same as Z.sub.31, Z.sub.32, and Z.sub.33 defined in Formula (3),

[0917] R.sub.32 to R.sub.39 represent the same as R.sub.32 to R.sub.39 defined in Formula (36),

[0918] at least one combination of adjacent two or more of R.sub.360 to R.sub.364 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0919] a combination of R.sub.369 and R.sub.370 are mutually bonded to form a substituted or unsubstituted monocyclic ring, mutually bonded to form a substituted or unsubstituted fused ring, or not mutually bonded,

[0920] R.sub.360 to R.sub.364, R.sub.369, and R.sub.370 forming neither the substituted or unsubstituted monocyclic ring nor the substituted or unsubstituted fused ring are each independently a hydrogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a group represented by —Si(R.sub.901)(R.sub.902)(R.sub.903), a group represented by —O—(R.sub.904), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,

[0921] R.sub.901, R.sub.902, R.sub.903, and R.sub.904 represent the same as R.sub.901, R.sub.902, R.sub.903, and R.sub.904 defined in Formula (3), and

[0922] n4 is 3, and three R.sub.360 are mutually the same or different.

[0923] In the organic EL device according to the exemplary embodiment, C is preferably a substituted or unsubstituted aryl group having 13 to 24 ring carbon atoms.

[0924] In the organic EL device according to the exemplary embodiment, A is preferably a substituted or unsubstituted aryl group having 6 to 12 ring carbon atoms.

[0925] In the organic EL device according to the exemplary embodiment, A is preferably a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.

[0926] In the organic EL device according to the exemplary embodiment, A is preferably a phenyl group, a biphenyl group, or a naphthyl group.

[0927] In the organic EL device according to the exemplary embodiment, B is preferably a substituted or unsubstituted aryl group having 6 to 12 ring carbon atoms.

[0928] In the organic EL device according to the exemplary embodiment, B is preferably a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.

[0929] In the organic EL device according to the exemplary embodiment, the third compound preferably has no substituted or unsubstituted pyridine ring in a molecule.

[0930] In the organic EL device according to the exemplary embodiment, the third compound preferably has no substituted or unsubstituted imidazole ring in a molecule.

[0931] In the organic EL device according to the exemplary embodiment, the second electron transporting layer preferably consists of the third compound.

Manufacturing Method of Third Compound

[0932] The third compound can be manufactured by a known method. Moreover, the third compound can also be manufactured based on a known method through a known alternative reaction using a known material(s) tailored for the target compound.

Specific Examples of Third Compound

[0933] Specific examples of the third compound include the following compounds. It should however be noted that the invention is not limited to the specific examples of the third compound.

##STR00443## ##STR00444## ##STR00445## ##STR00446## ##STR00447## ##STR00448## ##STR00449## ##STR00450## ##STR00451## ##STR00452## ##STR00453## ##STR00454## ##STR00455## ##STR00456## ##STR00457## ##STR00458## ##STR00459## ##STR00460## ##STR00461## ##STR00462## ##STR00463## ##STR00464## ##STR00465## ##STR00466## ##STR00467## ##STR00468## ##STR00469## ##STR00470## ##STR00471## ##STR00472## ##STR00473## ##STR00474## ##STR00475## ##STR00476## ##STR00477## ##STR00478## ##STR00479## ##STR00480## ##STR00481## ##STR00482## ##STR00483## ##STR00484## ##STR00485## ##STR00486## ##STR00487## ##STR00488## ##STR00489## ##STR00490## ##STR00491## ##STR00492## ##STR00493## ##STR00494## ##STR00495## ##STR00496## ##STR00497## ##STR00498## ##STR00499## ##STR00500## ##STR00501## ##STR00502## ##STR00503## ##STR00504## ##STR00505## ##STR00506## ##STR00507## ##STR00508## ##STR00509## ##STR00510## ##STR00511## ##STR00512## ##STR00513## ##STR00514## ##STR00515## ##STR00516##

##STR00517## ##STR00518## ##STR00519## ##STR00520## ##STR00521## ##STR00522## ##STR00523## ##STR00524## ##STR00525## ##STR00526## ##STR00527## ##STR00528## ##STR00529## ##STR00530## ##STR00531## ##STR00532## ##STR00533## ##STR00534## ##STR00535## ##STR00536## ##STR00537## ##STR00538## ##STR00539## ##STR00540## ##STR00541## ##STR00542## ##STR00543## ##STR00544## ##STR00545## ##STR00546## ##STR00547## ##STR00548## ##STR00549## ##STR00550## ##STR00551## ##STR00552## ##STR00553## ##STR00554## ##STR00555## ##STR00556## ##STR00557## ##STR00558## ##STR00559## ##STR00560##

[0934] In the organic EL device according to the exemplary embodiment, the substituent for “substituted or unsubstituted” group is preferably at least one group selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an aryl group having 6 to 18 ring carbon atoms, and a heterocyclic group having 5 to 18 ring atoms.

[0935] In the organic EL device according to the exemplary embodiment, the substituent for “substituted or unsubstituted” group is preferably an alkyl group having 1 to 5 carbon atoms.

[0936] Arrangement(s) of the organic EL device will be further described below. It should be noted that the reference numerals will be sometimes omitted below.

Substrate

[0937] The substrate is used as a support for the organic EL device. For instance, glass, quartz, plastics and the like are usable for the substrate. A flexible substrate is also usable. The flexible substrate is a bendable substrate, which is exemplified by a plastic substrate. Examples of the material for the plastic substrate include polycarbonate, polyarylate, polyethersulfone, polypropylene, polyester, polyvinyl fluoride, polyvinyl chloride, polyimide, and polyethylene naphthalate. Moreover, an inorganic vapor deposition film is also usable.

Anode

[0938] Metal, an alloy, an electrically conductive compound, a mixture thereof, or the like having a large work function (specifically, 4.0 eV or more) is preferably used as the anode formed on the substrate. Specific examples of the material include ITO (Indium Tin Oxide), indium oxide-tin oxide containing silicon or silicon oxide, indium oxide-zinc oxide, indium oxide containing tungsten oxide and zinc oxide, and graphene. In addition, gold (Au), platinum (Pt), nickel (Ni), tungsten (W), chrome (Cr), molybdenum (Mo), iron (Fe), cobalt (Co), copper (Cu), palladium (Pd), titanium (Ti), and nitrides of a metal material (e.g., titanium nitride) are usable.

[0939] The material is typically formed into a film by a sputtering method. For instance, the indium oxide-zinc oxide can be formed into a film by the sputtering method using a target in which zinc oxide in a range from 1 mass % to 10 mass % is added to indium oxide. Moreover, for instance, the indium oxide containing tungsten oxide and zinc oxide can be formed by the sputtering method using a target in which tungsten oxide in a range from 0.5 mass % to 5 mass % and zinc oxide in a range from 0.1 mass % to 1 mass % are added to indium oxide. In addition, the anode may be formed by a vacuum deposition method, a coating method, an inkjet method, a spin coating method or the like.

[0940] Among the organic layers formed on the anode, since the hole injecting layer adjacent to the anode is formed of a composite material into which holes are easily injectable irrespective of the work function of the anode, a material usable as an electrode material (e.g., metal, an alloy, an electroconductive compound, a mixture thereof, and the elements belonging to the group 1 or 2 of the periodic table) is also usable for the anode.

[0941] A material having a small work function such as elements belonging to Groups 1 and 2 in the periodic table of the elements, specifically, an alkali metal such as lithium (Li) and cesium (Cs), an alkaline earth metal such as magnesium (Mg), calcium (Ca) and strontium (Sr), alloys (e.g., MgAg and AlLi) including the alkali metal or the alkaline earth metal, a rare earth metal such as europium (Eu) and ytterbium (Yb), alloys including the rare earth metal are also usable for the anode. It should be noted that the vacuum deposition method and the sputtering method are usable for forming the anode using the alkali metal, alkaline earth metal and the alloy thereof. Further, when a silver paste is used for the anode, the coating method and the inkjet method are usable.

Cathode

[0942] It is preferable to use metal, an alloy, an electroconductive compound, a mixture thereof, or the like having a small work function (specifically, 3.8 eV or less) for the cathode. Examples of the material for the cathode include elements belonging to Groups 1 and 2 in the periodic table of the elements, specifically, the alkali metal such as lithium (Li) and cesium (Cs), the alkaline earth metal such as magnesium (Mg), calcium (Ca) and strontium (Sr), alloys (e.g., MgAg and AlLi) including the alkali metal or the alkaline earth metal, the rare earth metal such as europium (Eu) and ytterbium (Yb), and alloys including the rare earth metal.

[0943] It should be noted that the vacuum deposition method and the sputtering method are usable for forming the cathode using the alkali metal, alkaline earth metal and the alloy thereof. Further, when a silver paste is used for the cathode, the coating method and the inkjet method are usable.

[0944] By providing the electron injecting layer, various conductive materials such as Al, Ag, ITO, graphene, and indium oxide-tin oxide containing silicon or silicon oxide may be used for forming the cathode regardless of the work function. The conductive materials can be formed into a film using the sputtering method, inkjet method, spin coating method and the like.

Hole Injecting Layer

[0945] The hole injecting layer is a layer containing a substance exhibiting a high hole injectability. Examples of the substance exhibiting a high hole injectability include molybdenum oxide, titanium oxide, vanadium oxide, rhenium oxide, ruthenium oxide, chrome oxide, zirconium oxide, hafnium oxide, tantalum oxide, silver oxide, tungsten oxide, and manganese oxide.

[0946] In addition, the examples of the highly hole-injectable substance further include: an aromatic amine compound, which is a low-molecule organic compound, such that 4,4′,4″-tris(N,N-diphenylamino)triphenylamine (abbreviation: TDATA), 4,4′,4″-tris[N-(3-methylphenyl)-N-phenylamino]triphenylamine (abbreviation: MTDATA), 4,4′-bis[N-(4-diphenylaminophenyl)-N-phenylamino]biphenyl (abbreviation: DPAB), 4,4′-bis(N-{4-[N′-(3-methylphenyl)-N-phenylamino]phenyl}-N-phenylamino)biphenyl (abbreviation: DNTPD), 1,3,5-tris[N-(4-diphenylaminophenyl)-N-phenylamino]benzene (abbreviation: DPA3B), 3-[N-(9-phenylcarbazole-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA1), 3,6-bis[N-(9-phenylcarbazole-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA2), and 3-[N-(1-naphthyl)-N-(9-phenylcarbazole-3-yl)amino]-9-phenylcarbazole (abbreviation: PCzPCN1); and dipyrazino[2,3-f:20,30-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN).

[0947] In addition, a high polymer compound (e.g., oligomer, dendrimer and polymer) is usable as the substance exhibiting a high hole injectability. Examples of the high-molecule compound include poly(N-vinylcarbazole) (abbreviation: PVK), poly(4-vinyltriphenylamine) (abbreviation: PVTPA), poly[N-(4-{N′-[4-(4-diphenylamino)phenyl]phenyl-N′-phenylamino}phenyl)methacrylamide] (abbreviation: PTPDMA), and poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine] (abbreviation: Poly-TPD). Moreover, an acid-added high polymer compound such as poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonic acid) (PEDOT/PSS) and polyaniline/poly(styrene sulfonic acid)(PAni/PSS) are also usable.

Hole Transporting Layers

[0948] The hole transporting layer is a layer containing a highly hole-transporting substance. An aromatic amine compound, carbazole derivative, anthracene derivative and the like are usable for the hole transporting layer. Specific examples of a material for the hole transporting layer include 4,4′-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (abbreviation: NPB), N,N′-bis(3-methylphenyl)-N,N′-diphenyl-[1,1′-biphenyl]-4,4′-diamine (abbreviation: TPD), 4-phenyl-4′-(9-phenylfluorene-9-yl)triphenylamine (abbreviation: BAFLP), 4,4′-bis[N-(9,9-dimethylfluorene-2-yl)-N-phenylamino]biphenyl (abbreviation: DFLDPBi), 4,4′,4″-tris(N,N-diphenylamino)triphenylamine (abbreviation: TDATA), 4,4′,4″-tris[N-(3-methylphenyl)-N-phenylamino]triphenylamine (abbreviation: MTDATA), and 4,4′-bis[N-(spiro-9,9′-bifluorene-2-yl)-N-phenylamino]biphenyl (abbreviation: BSPB). The above-described substances mostly have a hole mobility of 10.sup.−6 cm.sup.2/(V s) or more.

[0949] For the hole transporting layer, a carbazole derivative such as CBP, 9-[4-(N-carbazolyl)]phenyl-10-phenylanthracene (CzPA), and 9-phenyl-3-[4-(10-phenyl-9-anthryl)phenyl]-9H-carbazole (PCzPA) and an anthracene derivative such as t-BuDNA, DNA, and DPAnth may be used. A high polymer compound such as poly(N-vinylcarbazole) (abbreviation: PVK) and poly(4-vinyltriphenylamine) (abbreviation: PVTPA) is also usable.

[0950] However, in addition to the above substances, any substance exhibiting a higher hole transportability than an electron transportability may be used. It should be noted that the layer containing the substance exhibiting a high hole transportability may be not only a single layer but also a laminate of two or more layers formed of the above substance(s).

Electron Transporting Layer

[0951] The organic EL device according to the exemplary embodiment may further include an additional electron transporting layer (e.g., a third electron transporting layer) between the second electron transporting layer and the cathode.

[0952] The electron transporting layer is a layer containing a highly electron-transporting substance. For the electron transporting layer, 1) a metal complex such as an aluminum complex, beryllium complex, and zinc complex, 2) a heteroaromatic compound such as imidazole derivative, benzimidazole derivative, azine derivative, carbazole derivative, and phenanthroline derivative, and 3) a high polymer compound are usable. Specifically, as a low-molecule organic compound, a metal complex such as Alq, tris(4-methyl-8-quinolinato)aluminum (abbreviation: Almq.sub.3), bis(10-hydroxybenzo[h]quinolinato)beryllium (abbreviation: BeBq.sub.2), BAlq, Znq, ZnPBO and ZnBTZ is usable. In addition to the metal complex, a heteroaromatic compound such as 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (abbreviation: PBD), 1,3-bis[5-(ptert-butylphenyl)-1,3,4-oxadiazole-2-yl]benzene (abbreviation: OXD-7), 3-(4-tert-butylphenyl)-4-phenyl-5-(4-biphenylyl)-1,2,4-triazole (abbreviation: TAZ), 3-(4-tert-butylphenyl)-4-(4-ethylphenyl)-5-(4-biphenylyl)-1,2,4-triazole (abbreviation: p-EtTAZ), bathophenanthroline (abbreviation: BPhen), bathocuproine (abbreviation: BCP), and 4,4′-bis(5-methylbenzoxazole-2-yl)stilbene (abbreviation: BzOs) is usable. In the exemplary embodiment, a benzimidazole compound is preferably usable for the additional electron transporting layer. The above-described substances mostly have an electron mobility of 10.sup.−6 cm.sup.2/Vs or more. It should be noted that any substance other than the above substance may be used for the electron transporting layer as long as the substance exhibits a higher electron transportability than the hole transportability.

[0953] Further, a high polymer compound is usable for the electron transporting layer. For instance, poly[(9,9-dihexylfluorene-2,7-diyl)-co-(pyridine-3,5-diyl)] (abbreviation: PF-Py), poly[(9,9-dioctylfluorene-2,7-diyl)-co-(2,2′-bipyridine-6,6′-diyl)] (abbreviation: PF-BPy) and the like are usable.

[0954] Electron Injecting Layer

[0955] The electron injecting layer is a layer containing a highly electron-injectable substance. Examples of a material for the electron injecting layer include an alkali metal, alkaline earth metal and a compound thereof, examples of which include lithium (Li), cesium (Cs), calcium (Ca), lithium fluoride (LiF), cesium fluoride (CsF), calcium fluoride (CaF.sub.2), and lithium oxide (LiO.sub.X). In addition, the alkali metal, alkaline earth metal or the compound thereof may be added to the substance exhibiting the electron transportability in use. Specifically, for instance, magnesium (Mg) added to Alq may be used. In this case, the electrons can be more efficiently injected from the cathode.

[0956] Alternatively, the electron injecting layer may be provided by a composite material in a form of a mixture of the organic compound and the electron donor. Such a composite material exhibits excellent electron injectability and electron transportability since electrons are generated in the organic compound by the electron donor. In this case, the organic compound is preferably a material excellent in transporting the generated electrons. Specifically, the above examples (e.g., the metal complex and the heteroaromatic compound) of the substance forming the electron transporting layer are usable. As the electron donor, any substance exhibiting electron donating property to the organic compound is usable. Specifically, the electron donor is preferably alkali metal, alkaline earth metal and rare earth metal such as lithium, cesium, magnesium, calcium, erbium and ytterbium. The electron donor is also preferably alkali metal oxide and alkaline earth metal oxide such as lithium oxide, calcium oxide, and barium oxide. Moreover, a Lewis base such as magnesium oxide is usable. Further, the organic compound such as tetrathiafulvalene (abbreviation: TTF) is usable.

Layer Formation Method(s)

[0957] A method for forming each layer of the organic EL device in the exemplary embodiment is subject to no limitation except for the above particular description. However, known methods of dry film-forming such as vacuum deposition, sputtering, plasma or ion plating and wet film-forming such as spin coating, dipping, flow coating or ink-jet are applicable.

Film Thickness

[0958] A film thickness of each of the organic layers of the organic EL device in the exemplary embodiment is not limited unless otherwise specified in the above. In general, the thickness preferably ranges from several nanometers to 1 μm because excessively small film thickness is likely to cause defects (e.g. pin holes) and excessively large thickness leads to the necessity of applying high voltage and consequent reduction in efficiency.

Emission Wavelength of Organic EL Device

[0959] The organic electroluminescence device of the exemplary embodiment preferably emits light having a maximum peak wavelength in a range from 430 nm to 480 nm when the organic electroluminescence device is driven.

[0960] The maximum peak wavelength of the light emitted from the organic EL device when being driven is measured as follows. Voltage is applied on the organic EL devices such that a current density becomes 10 mA/cm.sup.2, where spectral radiance spectrum is measured by a spectroradiometer CS-2000 (manufactured by Konica Minolta, Inc.). A peak wavelength of an emission spectrum, at which the luminous intensity of the obtained spectral radiance spectrum is at the maximum, is measured and defined as a maximum peak wavelength (unit: nm).

[0961] According to the exemplary embodiment, an organic electroluminescence device that emits light for a long lifetime can be provided.

[0962] In the organic EL device according to the exemplary embodiment, an emitting layer containing the first compound represented by Formula (1) or the like, the first electron transporting layer containing the second compound represented by Formula (2) or the like, and the second electron transporting layer containing the third compound represented by Formula (3) or the like are in direct contact with each other. Injection of electrons into the first electron transporting layer is reduced appropriately by laminating the emitting layer, the first electron transporting layer, and the second electron transporting layers as described above. As a result, the organic EL device according to the exemplary embodiment has a longer lifetime than known organic EL devices using the second electron transporting layer that contains a pyridine derivative or imidazole derivative.

Second Exemplary Embodiment

Electronic Device

[0963] An electronic device according to a second exemplary embodiment is installed with any one of the organic EL devices according to the above exemplary embodiment. Examples of the electronic device include a display device and a light-emitting device. Examples of the display device include a display component (e.g., an organic EL panel module), TV, mobile phone, tablet and personal computer. Examples of the light-emitting device include an illuminator and a vehicle light.

Modification of Exemplary Embodiment(s)

[0964] The scope of the invention is not limited to the above-described exemplary embodiments but includes any modification and improvement as long as such modification and improvement are compatible with the invention.

[0965] For instance, the emitting layer is not limited to a single layer, but may be provided by laminating two or more emitting layers. When the organic EL device has two or more emitting layers, it is only required that at least one of the emitting layers satisfies the conditions described in the above exemplary embodiments. For instance, the rest of the emitting layers may be a fluorescent emitting layer or a phosphorescent emitting layer with use of emission caused by electron transfer from the triplet excited state directly to the ground state.

[0966] When the organic EL device includes a plurality of emitting layers, these emitting layers may be mutually adjacently provided, or may form a so-called tandem organic EL device in which a plurality of emitting units are layered via an intermediate layer.

[0967] Further, for instance, a blocking layer may be provided adjacent to a side of the emitting layer close to the anode. The blocking layer provided at the side of the emitting layer close to the anode is preferably in direct contact with the emitting layer. The blocking layer provided at the side of the emitting layer close to the anode preferably blocks at least one of electrons or excitons.

[0968] For instance, when the blocking layer is provided in contact with the side of the emitting layer close to the anode, the blocking layer permits transport of holes and blocks electrons from reaching a layer provided closer to the anode (e.g., the hole transporting layer) beyond the blocking layer. When the organic EL device includes the hole transporting layer, the blocking layer is preferably disposed between the emitting layer and the hole transporting layer.

[0969] Alternatively, the blocking layer may be provided adjacent to the emitting layer so that excitation energy does not leak out from the emitting layer toward neighboring layer(s). The blocking layer blocks excitons generated in the emitting layer from being transferred to a layer(s) (e.g., the electron transporting layer and the hole transporting layer) closer to the electrode(s) beyond the blocking layer.

[0970] The emitting layer is preferably bonded with the blocking layer.

[0971] Specific structure, shape and the like of the components in the invention may be designed in any manner as long as an object of the invention can be achieved.

EXAMPLES

[0972] The invention will be described in further detail with reference to Example(s). It should be noted that the scope of the invention is by no means limited to Examples.

Compounds

[0973] Structures of compounds represented by Formula (1) and used for manufacturing organic EL devices in Examples 1 to 8 are shown below.

##STR00561##

[0974] Structures of compounds represented by Formula (2) and used for manufacturing organic EL devices in Examples 1 to 8 are shown below.

##STR00562##

[0975] Structures of compounds represented by Formula (3) and used for manufacturing organic EL devices in Examples 1 to 8 are shown below.

##STR00563##

[0976] Structures of other compounds used for manufacturing organic EL devices in Examples 1 to 8 and Comparative Examples 1 to 8 are shown below.

##STR00564## ##STR00565## ##STR00566##

Manufacture 1 of Organic EL Device

[0977] The organic EL devices were manufactured and evaluated as follows.

Example 1

[0978] A glass substrate (size: 25 mm×75 mm×1.1 mm thick, manufactured by Geomatec Co., Ltd.) having an ITO (Indium Tin Oxide) transparent electrode (anode) was ultrasonic-cleaned in isopropyl alcohol for five minutes, and then UV-ozone-cleaned for 30 minutes. The film thickness of the ITO transparent electrode was 130 nm.

[0979] The cleaned glass substrate having the transparent electrode line was attached to a substrate holder of a vacuum deposition apparatus. Initially, a compound HT1 and a compound HA1 were co-deposited on a surface provided with the transparent electrode line to cover the transparent electrode, thereby forming a 10-nm-thick hole injecting layer. The ratios of the compound HT1 and the compound HA1 in the hole injecting layer were 97 mass % and 3 mass %, respectively.

[0980] After the formation of the hole injecting layer, the compound HT1 was vapor-deposited to form an 80-nm-thick second hole transporting layer.

[0981] After the formation of the second hole transporting layer, a compound HT2 was vapor-deposited to form a 10-nm-thick first hole transporting layer.

[0982] A compound PY1 (host material) and a compound BD1 (dopant material (BD)) were co-deposited on the first hole transporting layer such that the ratio of the compound BD1 accounted for 4 mass %, thereby forming a 12.5-nm-thick emitting layer.

[0983] A compound AN1 was vapor-deposited on the emitting layer to form a 12.5-nm-thick first electron transporting layer (also referred to as a hole blocking layer (HBL)).

[0984] A compound ET1 was vapor-deposited on the first electron transporting layer to form a 10-nm-thick second electron transporting layer (ET).

[0985] A compound ET3 was vapor-deposited on the second electron transporting layer to form a 15-nm-thick third electron transporting layer.

[0986] LiF was vapor-deposited on the third electron transporting layer to form a 1-nm-thick electron injecting layer.

[0987] Metal Al was vapor-deposited on the electron injecting layer to form an 80-nm-thick cathode.

[0988] A device arrangement of the organic EL device in Example 1 is roughly shown as follows.

[0989] ITO (130)/HT1:HA1 (10, 97%:3%)/HT1 (80)/HT2 (10)/PY1:BD1 (12.5, 96%/4%)/AN1 (12.5)/ET1 (10)/ET3 (15)/LiF (1)/Al (80)

[0990] The numerals in parentheses represent a film thickness (unit: nm).

[0991] The numerals (97%:3%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound HT1 and the compound HA1 in the hole injecting layer, and the numerals (96%:4%) represented by percentage in the same parentheses indicate a ratio (mass %) between the host material (the compound PY1) and the compound BD1 in the emitting layer. Similar notations apply to the description below.

Example 2

[0992] The organic EL device of Example 2 was manufactured in the same manner as in Example 1, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 1 with the compound listed in Table 1.

Comparative Example 1

[0993] The organic EL device of Comparative Example 1 was manufactured in the same manner as in Example 1, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 1 with the compound listed in Table 1.

Comparative Example 2

[0994] The organic EL device of Comparative Example 2 was manufactured in the same manner as in Example 1, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 1 with the compound listed in Table 1.

Evaluation of Organic EL Devices

[0995] The organic EL devices manufactured in Examples 1 to 8 and Comparative Examples 1 to 8 were evaluated as follows. Evaluation results are shown in Tables 1 to 4.

Lifetime

[0996] Voltage was applied on the resultant organic EL devices such that a current density was 50 mA/cm.sup.2, where a time (LT90 (unit: hr)) elapsed before a luminance intensity was reduced to 90% of the initial luminance intensity was measured.

[0997] Table 1 shows relative values of lifetime LT90 of the organic EL devices of Example 1, Example 2, Comparative Example 1, and Comparative Example 2 to lifetime LT90 of the organic EL device of Comparative Example 1. The lifetimes as relative values were calculated according to an equation below.

Lifetime (relative value)=LT.sub.A/LT.sub.B

[0998] LT.sub.A: LT90 of the organic EL device for which the relative value is calculated

[0999] LT.sub.B: LT90 of the organic EL device of Comparative Example 1

[1000] Table 2 shows relative values of lifetime LT90 of the organic EL devices of Example 3, Example 4, Comparative Example 3, and Comparative Example 4 to lifetime LT90 of the organic EL device of Comparative Example 3. The lifetimes as relative values were calculated according to an equation below.

Lifetime (relative value)=LT.sub.A/LT.sub.B

[1001] LT.sub.A: LT90 of the organic EL device for which the relative value is calculated

[1002] LT.sub.B: LT90 of the organic EL device of Comparative Example 3

[1003] Table 3 shows relative values of lifetime LT90 of the organic EL devices of Example 5, Example 6, Comparative Example 5, and Comparative Example 6 to lifetime LT90 of the organic EL device of Comparative Example 5. The lifetimes as relative values were calculated according to an equation below.

Lifetime (relative value)=LT.sub.A/LT.sub.B

[1004] LT.sub.A: LT90 of the organic EL device for which the relative value is calculated

[1005] LT.sub.B: LT90 of the organic EL device of Comparative Example 5

[1006] Table 4 shows relative values of lifetime LT90 of the organic EL devices of Example 7, Example 8, Comparative Example 7, and Comparative Example 8 to lifetime LT90 of the organic EL device of Comparative Example 7. The lifetimes as relative values were calculated according to an equation below.

Lifetime (relative value)=LT.sub.A/LT.sub.B

[1007] LT.sub.A: LT90 of the organic EL device for which the relative value is calculated

[1008] LT.sub.B: LT90 of the organic EL device of Comparative Example 7

TABLE-US-00001 TABLE 1 First Second electron electron Lifetime Emitting transporting transporting (relative layer layer layer value) Compounds Compound Compound [—] Example 1 PY1 and BD1 AN1 ET1 2.04 Example 2 PY1 and BD1 AN1 ET2 1.65 Comparative PY1 and BD1 AN1 Ref-ET1 1.00 Example 1 Comparative PY1 and BD1 AN1 Ref-ET2 0.61 Example 2

[1009] Each of the organic EL devices according to Examples 1 and 2 and Comparative Examples 1 and 2 includes the emitting layer, the first electron transporting layer directly adjacent to the emitting layer, and the second electron transporting layer directly adjacent to the first electron transporting layer. The emitting layer contains the first compound represented by Formula (1), and the first electron transporting layer contains the second compound represented by Formula (2). In Examples 1 and 2, the second electron transporting layer contains the third compound represented by Formula (3). In Comparative Examples 1 and 2, the second electron transporting layer contains a pyridine or imidazole derivative.

[1010] As shown in Table 1, the organic EL devices according to Examples 1 and 2 emitted light for a long lifetime by using the third compound represented by Formula (3) in the second electron transporting layer.

Manufacture 2 of Organic EL Device

[1011] The organic EL devices were manufactured and evaluated as follows.

Example 3

[1012] A glass substrate (size: 25 mm×75 mm×1.1 mm thick, manufactured by Geomatec Co., Ltd.) having an ITO (Indium Tin Oxide) transparent electrode (anode) was ultrasonic-cleaned in isopropyl alcohol for five minutes, and then UV-ozone-cleaned for 30 minutes. The film thickness of the ITO transparent electrode was 130 nm.

[1013] The cleaned glass substrate having the transparent electrode line was attached to a substrate holder of a vacuum deposition apparatus. Initially, a compound HT3 and the compound HA1 were co-deposited on a surface provided with the transparent electrode line to cover the transparent electrode, thereby forming a 10-nm-thick hole injecting layer. The ratios of the compound HT3 and the compound HA1 in the hole injecting layer were 97 mass % and 3 mass %, respectively.

[1014] After the formation of the hole injecting layer, the compound HT3 was vapor-deposited to form an 85-nm-thick second hole transporting layer.

[1015] After the formation of the second hole transporting layer, a compound HT4 was vapor-deposited to form a 5-nm-thick first hole transporting layer.

[1016] A compound PY2 (host material) and a compound BD2 (dopant material (BD)) were co-deposited on the first hole transporting layer such that the ratio of the compound BD2 accounted for 2 mass %, thereby forming a 10-nm-thick first emitting layer.

[1017] A compound AN3 (host material) and the compound BD2 (dopant material) were co-deposited on the first emitting layer such that the ratio of the compound BD2 accounted for 2 mass %, thereby forming a 10-nm-thick second emitting layer.

[1018] A compound AN2 was vapor-deposited on the second emitting layer to form a 5-nm-thick first electron transporting layer (also referred to as a hole blocking layer (HBL)).

[1019] The compound ET1 was vapor-deposited on the first electron transporting layer to form a 5-nm-thick second electron transporting layer (ET).

[1020] A compound ET4 and a compound Liq were co-deposited on the second electron transporting layer (ET) to form a 20-nm-thick third electron transporting layer (ET). The ratios of the compound ET4 and the compound Liq in the third electron transporting layer (ET) were both 50 mass %. It should be noted that Liq is an abbreviation for (8-quinolinolato)lithium.

[1021] Liq was vapor-deposited on the third electron transporting layer to form a 1-nm-thick electron injecting layer.

[1022] Metal Al was vapor-deposited on the electron injecting layer to form an 80-nm-thick cathode.

[1023] A device arrangement of the organic EL device in Example 3 is roughly shown as follows.

[1024] ITO (130)/HT3:HA1 (10, 97%:3%)/HT3 (85)/HT4 (5)/PY2:BD2 (10, 98%:2%)/AN3:BD2 (10, 98%/2%)/AN2 (5)/ET1 (5)/ET4:Liq (20, 50%:50%)/Liq (1)/Al (80)

[1025] The numerals in parentheses represent a film thickness (unit: nm).

[1026] The numerals (97%:3%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound HT3 and the compound HA1 in the hole injecting layer, the numerals (98%:2%) represented by percentage in the same parentheses indicate a ratio (mass %) between the host material (the compound PY2 or AN3) and the compound BD2 in the emitting layer, and the numerals (50%:50%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound ET4 and the compound Liq in the third electron transporting layer. Similar notations apply to the description below.

Example 4

[1027] The organic EL device of Example 4 was manufactured in the same manner as in Example 3, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 3 with the compound listed in Table 2.

Comparative Examples 3 and 4

[1028] The organic EL devices of Comparative Examples 3 and 4 were manufactured in the same manner as in Example 3, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 3 with the compounds listed in Table 2.

TABLE-US-00002 TABLE 2 First electron Second electron Lifetime First emitting layer Second emitting layer transporting layer transporting layer (relative Thickness Thickness Thickness Thickness value) Compounds [nm] Compounds [nm] Compound [nm] Compound [nm] [—] Example 3 PY2 and BD2 10 AN3 and BD2 10 AN2 5 ET1 5 2.99 Example 4 PY2 and BD2 10 AN3 and BD2 10 AN2 5 ET2 5 2.48 Comparative PY2 and BD2 10 AN3 and BD2 10 AN2 5 Ref-ET1 5 1.00 Example 3 Comparative PY2 and BD2 10 AN3 and BD2 10 AN2 5 Ref-ET2 5 0.73 Example 4

Example 5

[1029] A glass substrate (size: 25 mm×75 mm×1.1 mm thick, manufactured by Geomatec Co., Ltd.) having an ITO (Indium Tin Oxide) transparent electrode (anode) was ultrasonic-cleaned in isopropyl alcohol for five minutes, and then UV-ozone-cleaned for 30 minutes. The film thickness of the ITO transparent electrode was 130 nm.

[1030] The cleaned glass substrate having the transparent electrode line was attached to a substrate holder of a vacuum deposition apparatus. Initially, the compound HT3 and the compound HA1 were co-deposited on a surface provided with the transparent electrode line to cover the transparent electrode, thereby forming a 10-nm-thick hole injecting layer. The ratios of the compound HT3 and the compound HA1 in the hole injecting layer were 97 mass % and 3 mass %, respectively.

[1031] After the formation of the hole injecting layer, the compound HT3 was vapor-deposited to form an 85-nm-thick second hole transporting layer.

[1032] After the formation of the second hole transporting layer, the compound HT4 was vapor-deposited to form a 5-nm-thick first hole transporting layer.

[1033] A compound PY3 (host material) and the compound BD2 (dopant material (BD)) were co-deposited on the first hole transporting layer such that the ratio of the compound BD2 accounted for 2 mass %, thereby forming a 5-nm-thick first emitting layer.

[1034] The compound AN3 (host material) and the compound BD2 (dopant material) were co-deposited on the first emitting layer so that a ratio of the compound BD2 accounted for 2 mass %, thereby forming a 15-nm-thick second emitting layer.

[1035] The compound AN3 was vapor-deposited on the second emitting layer to form a 2-nm-thick first electron transporting layer (also referred to as a hole blocking layer (HBL)).

[1036] The compound ET1 was vapor-deposited on the first electron transporting layer to form a 5-nm-thick second electron transporting layer (ET).

[1037] The compound ET4 and the compound Liq were co-deposited on the second electron transporting layer (ET) to form a 23-nm-thick third electron transporting layer (ET). The ratios of the compound ET4 and the compound Liq in the third electron transporting layer (ET) were both 50 mass %. It should be noted that Liq is an abbreviation for (8-quinolinolato)lithium.

[1038] Liq was vapor-deposited on the third electron transporting layer to form a 1-nm-thick electron injecting layer.

[1039] Metal Al was vapor-deposited on the electron injecting layer to form an 80-nm-thick cathode.

[1040] A device arrangement of the organic EL device in Example 5 is roughly shown as follows.

[1041] ITO (130)/HT3:HA1 (10, 97%:3%)/HT3 (85)/HT4 (5)/PY3:BD2 (5, 98%:2%)/AN3:BD2 (15, 98%:2%)/AN3 (2)/ET1 (5)/ET4:Liq (23, 50%:50%)/Liq (1)/Al (80) Numerals in parentheses represent a film thickness (unit: nm).

[1042] The numerals (97%:3%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound HT3 and the compound HA1 in the hole injecting layer, the numerals (98%:2%) represented by percentage in the same parentheses indicate a ratio (mass %) between the host material (the compound PY3 or AN3) and the compound BD2 in the emitting layer, and the numerals (50%:50%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound ET4 and the compound Liq in the third electron transporting layer. Similar notations apply to the description below.

Example 6

[1043] The organic EL device of Example 6 was manufactured in the same manner as in Example 5, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 5 with the compound listed in Table 3.

Comparative Examples 5 and 6

[1044] The organic EL devices of Comparative Examples 5 and 6 were manufactured in the same manner as in Example 5, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 5 with the compounds listed in Table 3.

TABLE-US-00003 TABLE 3 First electron Second electron Lifetime First emitting layer Second emitting layer transporting layer transporting layer (relative Thickness Thickness Thickness Thickness value) Compounds [nm] Compounds [nm] Compound [nm] Compound [nm] [—] Example 5 PY3 and BD2 5 AN3 and BD2 15 AN3 2 ET1 5 2.87 Example 6 PY3 and BD2 5 AN3 and BD2 15 AN3 2 ET2 5 2.34 Comparative PY3 and BD2 5 AN3 and BD2 15 AN3 2 Ref-ET1 5 1.00 Example 5 Comparative PY3 and BD2 5 AN3 and BD2 15 AN3 2 Ref-ET2 5 0.59 Example 6

Example 7

[1045] A glass substrate (size: 25 mm×75 mm×1.1 mm thick, manufactured by Geomatec Co., Ltd.) having an ITO (Indium Tin Oxide) transparent electrode (anode) was ultrasonic-cleaned in isopropyl alcohol for five minutes, and then UV-ozone-cleaned for 30 minutes. The film thickness of the ITO transparent electrode was 130 nm.

[1046] The cleaned glass substrate having the transparent electrode line was attached to a substrate holder of a vacuum deposition apparatus. Initially, the compound HT3 and the compound HA1 were co-deposited on a surface provided with the transparent electrode line to cover the transparent electrode, thereby forming a 10-nm-thick hole injecting layer. The ratios of the compound HT3 and the compound HA1 in the hole injecting layer were 97 mass % and 3 mass %, respectively.

[1047] After the formation of the hole injecting layer, the compound HT3 was vapor-deposited to form an 85-nm-thick second hole transporting layer.

[1048] After the formation of the second hole transporting layer, the compound HT4 was vapor-deposited to form a 5-nm-thick first hole transporting layer.

[1049] A compound PY4 (host material) and the compound BD2 (dopant material (BD)) were co-deposited on the first hole transporting layer so that a ratio of the compound BD2 accounted for 2 mass %, thereby forming a 5-nm-thick first emitting layer.

[1050] The compound AN3 (host material) and the compound BD2 (dopant material) were co-deposited on the first emitting layer so that a ratio of the compound BD2 accounted for 2 mass %, thereby forming a 15-nm-thick second emitting layer.

[1051] The compound AN3 was vapor-deposited on the second emitting layer to form a 1-nm-thick first electron transporting layer (also referred to as a hole blocking layer (HBL)).

[1052] The compound ET1 was vapor-deposited on the first electron transporting layer to form a 5-nm-thick second electron transporting layer (ET).

[1053] The compound ET4 and the compound Liq were co-deposited on the second electron transporting layer (ET) to form a 24-nm-thick third electron transporting layer (ET). The ratios of the compound ET4 and the compound Liq in the third electron transporting layer (ET) were both 50 mass %. It should be noted that Liq is an abbreviation for (8-quinolinolato)lithium.

[1054] Liq was vapor-deposited on the third electron transporting layer to form a 1-nm-thick electron injecting layer.

[1055] Metal Al was vapor-deposited on the electron injecting layer to form an 80-nm-thick cathode.

[1056] A device arrangement of the organic EL device in Example 7 is roughly shown as follows.

[1057] ITO (130)/HT3:HA1 (10, 97%:3%)/HT3 (85)/HT4 (5)/PY4:BD2 (5, 98%:2%)/AN3:BD2 (15, 98%:2%)/AN3 (1)/ET1 (5)/ET4:Liq (24, 50%:50%)/Liq (1)/Al (80)

[1058] The numerals (97%:3%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound HT3 and the compound HA1 in the hole injecting layer, the numerals (98%:2%) represented by percentage in the same parentheses indicate a ratio (mass %) between the host material (the compound PY4 or AN3) and the compound BD2 in the emitting layer, and the numerals (50%:50%) represented by percentage in the same parentheses indicate a ratio (mass %) between the compound ET4 and the compound Liq in the third electron transporting layer. Similar notations apply to the description below.

Example 8

[1059] The organic EL device of Example 8 was manufactured in the same manner as in Example 7, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 7 with the compound listed in Table 4.

Comparative Examples 7 and 8

[1060] The organic EL devices of Comparative Examples 7 and 8 were manufactured in the same manner as in Example 7, except that the second electron transporting layer was formed by replacing the compound used for forming the second electron transporting layer in Example 7 with the compounds listed in Table 4.

TABLE-US-00004 TABLE 4 First electron Second electron Lifetime First emitting layer Second emitting layer transporting layer transporting layer (relative Thickness Thickness Thickness Thickness value) Compounds [nm] Compounds [nm] Compound [nm] Compound [nm] [—] Example 7 PY4 and BD2 5 AN3 and BD2 15 AN3 1 ET1 5 3.02 Example 8 PY4 and BD2 5 AN3 and BD2 15 AN3 1 ET2 5 2.65 Comparative PY4 and BD2 5 AN3 and BD2 15 AN3 1 Ref-ET1 5 1.00 Example 7 Comparative PY4 and BD2 5 AN3 and BD2 15 AN3 1 Ref-ET2 5 0.82 Example 8

Evaluation of Compounds

Preparation of Toluene Solution

[1061] The compound BD1 was dissolved in toluene at a concentration of 4.9×10.sup.−6 mol/L to prepare a toluene solution of the compound BD1. A toluene solution of the compound BD2 was prepared in the same manner as the compound BD1.

Measurement of Maximum Fluorescence Peak Wavelength (FL-Peak)

[1062] Using a fluorescence spectrometer (spectrophotofluorometer F-7000 manufactured by Hitachi High-Tech Science Corporation), the toluene solution of the compound BD1 or the toluene solution of the compound BD2 was excited at 390 nm, where a maximum fluorescence peak wavelength was measured.

[1063] The maximum fluorescence peak wavelength of the compound BD1 was 450 nm.

[1064] The maximum fluorescence peak wavelength of the compound BD2 was 455 nm.

EXPLANATION OF CODES

[1065] 1 . . . organic EL device, 1A . . . organic EL device, 2 . . . substrate, 3 . . . anode, 4 . . . cathode, 5 . . . emitting layer, 51 . . . first emitting layer, 52 . . . second emitting layer, 6 . . . hole injecting layer, 7 . . . hole transporting layer, 81 . . . first electron transporting layer, 82 . . . second electron transporting layer, 9 . . . electron injecting layer, 10 . . . organic layer.