There is disclosed a compound having Formula I, Formula II, Formula III, Formula VIII, Formula IX, or Formula X

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The variables are described in detail in the application.

Provided are an organometallic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device.

M(L.sub.1).sub.n1(L.sub.2).sub.n2  Formula 1

M, L.sub.1, L.sub.2, n1, and n2 in Formula 1 are the same as described in the present specification.

Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at least one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

A dye loaded zeolite composite material comprises a plurality of zeolite crystals each having a plurality of straight through uniform channels extending between the proximal face and the distal face and having a channel axis parallel to and a channel width transverse to a longitudinal crystal axis A. Each channel contains a substantially linear arrangement of dye molecules comprising first and second dye molecules having an elongated shape with a longitudinal extension exceeding said channel width and a lateral extension not exceeding said channel width. Each dye molecule consists of a chromophore moiety arranged between a pair of terminal moieties, wherein: the chromophore moieties of the first and second dye molecules are substantially identical, the terminal moieties of the first dye molecules have a lateral extension larger than half of the channel width, the terminal moieties of the second dye molecules have a lateral extension smaller than half of the channel width, the linear arrangement of dye molecules comprises at least one pair of second dye molecules adjacent each other.

This application relates in part to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and an organic layer(s) including a light emitting layer, in which the organic layer(s) contains a compound represented by the following formula (1), in which R.sup.1 to R.sup.8 are each hydrogen or a substituent, at least one of R.sup.1 to R.sup.4 and at least one of R.sup.5 to R.sup.8 are each a substituent represented by the formula (2); R.sup.9 to R.sup.12, Z.sup.1 to Z.sup.4, Ar.sup.1, Ar.sup.2, and L.sup.1 are as defined herein. ##STR00001##

Anthracene derivatives each having a structure including an anthracene skeleton, a phenanthrene skeleton selected from among various phenanthrene skeletons different in bonding site which is bonded to the 9-position of the anthracene skeleton and a group selected from among various aryl groups and so on which is bonded to the 10-position of the anthracene skeleton. Organic EL devices made by using the derivatives exhibit high light emission efficiency and a long life.

Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption. ##STR00001##

A metal complex (1) is useful for producing a light emitting device having excellent external quantum efficiency.

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M represents Ir; n.sup.1 is 1 or more; n.sup.1+n.sup.2 is 3; E.sup.1 and E.sup.2 are nitrogen or carbon atoms; Ring L.sup.1 represents an aromatic hetero ring; Ring L.sup.2 represents an aromatic hydrocarbon or an aromatic hetero ring; A.sup.1-G.sup.1-A.sup.2 represents an anionic bidentate ligand, and Ring L.sup.1 or Ring L.sup.2 has a group (2).

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R.sup.3 represents an alkyl group; R.sup.4 to R.sup.8 are each a hydrogen atom or an alkyl group; X represents an arylene group; k.sub.1 represents 0 to 3. When (1) has only one type of (2), (i) is satisfied: (i) Ring L.sup.1 is a monocyclic 5-membered aromatic hetero ring; and at least one Ring L.sup.2 has formula (2) where R.sup.3 is a phenyl group, R.sup.4 is a hydrogen atom, and R.sup.3 and R.sup.4 are combined to form a fluorene ring.

The present invention relates to a condensed fluorene derivative comprising a hetero ring, and, more specifically, relates to an intermediate for producing a hetero-ring compound able to exhibit the outstanding element characteristic of a long life and outstanding luminance and light-emission efficiency when used as an organic light-emitting material.

Provided are an organic EL device having a high emission efficiency, a material for organic EL devices, which is capable of realizing the same, and the like. More specifically, provided are a compound represented by the following formula (1), a material for organic electroluminescence devices, which contains the compound, an organic electroluminescence device using the compound, and an electronic equipment provided with the organic electroluminescence device:

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wherein Ar represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 50 ring atoms, or a group formed by a combination of these groups, and W to R.sup.9 each independently represent a hydrogen atom or a substituent, provided that any pair of R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.4 and R.sup.5, R.sup.6 and R.sup.7, R.sup.7 and R.sup.8, and R.sup.8 and R.sup.9 are optionally bonded to each other to form a benzene ring.