Provided is an organic light emitting device comprising a light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2:

##STR00001## wherein: Ar.sub.1, Ar.sub.2, Ar.sub.4 and Ar.sub.5 are each independently a substituted or unsubstituted C.sub.6-60 aryl or C.sub.2-60 heteroaryl containing N, O or S; Ar.sub.3 is hydrogen, or a substituted or unsubstituted C.sub.6-60 aryl or C.sub.2-60 heteroaryl containing N, O or S; L.sub.1 to L.sub.3 are each independently a single bond or a substituted or unsubstituted C.sub.6-60 arylene; L.sub.4 to L.sub.6 are each independently a single bond or a substituted or unsubstituted C.sub.6-60 arylene or C.sub.2-60 heteroarylene containing N, O or S; L.sub.7 is a substituted or unsubstituted C.sub.6-60 arylene; R.sub.1 is hydrogen, deuterium, or a substituted or unsubstituted C.sub.6-60 aryl or C.sub.2-60 heteroaryl containing one or of N, O and S; a is 0 to 7.

An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) is provided. In the formula, Ar.sup.12 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group having 3 to 12 carbon atoms in Ar.sup.12 is 6 to 36. Ar.sup.11 and Ar.sup.21 each represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring. Ar.sup.22 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring. In addition, n and m each independently represent an integer of 0 or 1. Ar.sup.1 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms. Ar.sup.2 represents a phenyl group including at least one alkyl group having 1 to 6 carbon atoms, or an alkyl group having 1 to 4 carbon atoms.

##STR00001##

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes a heterocyclic compound of Formula 1:

A.sub.1B.sub.1].sub.n1  Formula 1

wherein, in Formula 1, the variables are defined herein.

The present application, which pertains to the technical field of organic materials, provides a nitrogen-containing compound, an electronic component, and an electronic device. The structure of the nitrogen-containing compound is shown in Formula 1, in which A is the group represented by Formula 2. The nitrogen-containing compound can improve the performance of electronic component. ##STR00001##

Provided is the nitrogen-containing compound shown in Chemical formula 1, an organic electroluminescent device, and an electronic apparatus, relating to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the organic electroluminescent device. ##STR00001##

The present specification relates to a compound and an organic electronic device including the same.

A compound represented by the following formula (1A) or (1B):

##STR00001##

(the symbols in the formulae (1A) and (1B) have the same meaning as defined in the specification), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having high luminous efficiency and/or long lifespan properties can be provided compared to conventional organic electroluminescent devices.

Disclosed are general and “substantially pure” branched discrete polyethylene glycol constructs useful in attaching to a variety of biologically active groups, for example, preferential locators, as well as biologics like enzymes, for use in diagnostics, e.g. imaging, therapeutics, theranostics, and moieties specific for other applications. In its simplest intermediate state, a branched branched discrete polyethylene glycol construct is terminated at one end by a chemically reactive moiety, “A”, a group that is reactive with a biologic material that creates “A”, which is a biologically reactive group, connected through to a branched core (BC) which has attached at least two dPEG-containing chains, indicated by the solid line, , having terminal groups, which can be charged, non-reactive or reactable moieties and containing between about 2 and 64 dPEG residues.

Provided is a compound of Chemical Formula 1:

##STR00001##

wherein n is 0 or 1, when n is 0, at least one of R1 to R10 is a group of Chemical Formula A, and when n is 1, at least one of R1 to R12 is a group of Chemical Formula A:

##STR00002##

wherein L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; l1 is an integer of 1 to 5; m is an integer of 1 to 3; when l1 is 2 or greater, the two or more L1s are the same as or different from each other, and an organic light emitting device including the same.