Provided are compounds having a first ligand L.sub.A of Formula I

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Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (R.sup.1 to R.sup.10 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.1 to R.sup.10 is a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in R.sup.1 to R.sup.10; the asterisk indicates the bonding position with a pyrene ring; X.sup.1 to X.sup.5 [each] represent a carbon atom or a nitrogen atom, and at least one of X.sup.1 to X.sup.5 is a nitrogen atom; R.sup.11 to R.sup.15 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.11 to R.sup.15 is an alkyl group or a silyl group; however, if X.sup.1 to X.sup.5 represent nitrogen atoms, there is no R.sup.11 to R.sup.15 bonded on these nitrogen atoms.)

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An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (R.sup.1 to R.sup.10 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.1 to R.sup.10 is a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in R.sup.1 to R.sup.10; the asterisk indicates the bonding position with a pyrene ring; X.sup.1 to X.sup.5 [each] represent a carbon atom or a nitrogen atom, and at least one of X.sup.1 to X.sup.5 is a nitrogen atom; R.sup.11 to R.sup.15 [each] represent a hydrogen atom or a substituent, and at least one of R.sup.11 to R.sup.15 is an alkyl group or a silyl group; however, if X.sup.1 to X.sup.5 represent nitrogen atoms, there is no R.sup.11 to R.sup.15 bonded on these nitrogen atoms.)

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The present invention relates to a compound of formula 1 and an organic electronic device comprising an organic semiconductor layer, wherein at least one organic semiconductor layer comprises a compound of formula (1), wherein L.sup.1 has the formula (2) and L.sup.2 has the formula (3), wherein L.sup.1 and L.sup.2 are bonded at * via a single bond independently to the same or different arylene groups or heteroarylenes group of Ar.sup.1; and wherein X.sup.1, X.sup.2 are independently selected from O, S and Se; Ar.sup.1 is selected from substituted or unsubstituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene, wherein the substituent of the substituted C.sub.20 to C.sub.52 arylene or C.sub.14 to C.sub.64 heteroarylene are independently selected from C.sub.1 to C.sub.12 alkyl, C.sub.1 to C.sub.12 alkoxy, CN, halogen, OH, C.sub.6 to C.sub.25 aryl and C.sub.2 to C.sub.21 heteroaryl; R.sup.1, R.sup.2 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl is selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; R.sup.3, R.sup.4 are independently selected from substituted or unsubstituted C.sub.1 to C.sub.16 alkyl, substituted or unsubstituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene, wherein the substituent of substituted C.sub.1 to C.sub.16 alkyl, the substituent of the substituted C.sub.6 to C.sub.18 arylene, C.sub.2 to C.sub.20 heteroarylene are independently selected from C.sub.6 to C.sub.18 arylene or C.sub.2 to C.sub.12 heteroarylene; n is selected from 1 to 5, wherein n is an integer number.

The present invention relates to a compound of a formula (I), in which an electron-deficient group and an arylamino group are connected to one another via an intermediate group. The compound of the formula (I) is suitable as functional material in electronic devices.

The present invention relates to a compound of a formula (I), in which an electron-deficient group and an arylamino group are connected to one another via an intermediate group. The compound of the formula (I) is suitable as functional material in electronic devices.

Provided is a fluorene derivative of Chemical Formula 1:

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and an organic light emitting device comprising the same.

Provided is a fluorene derivative of Chemical Formula 1:

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and an organic light emitting device comprising the same.

An epoxy resin composition excellent in storage stability and curability is provided. Particularly, a compound of general formula (I) and an epoxy resin composition containing the compound as a curing agent are provided. ##STR00001##
In formula (I), R1 is a hydrocarbon group optionally containing a nitrogen atom and capable of forming a cyclic structure optionally having a substituent; R2 is a hydrogen atom, an alkyl group, or an aryl group or is taken together with R1 to form an unsaturated bond; R3 is a hydrogen atom, an alkyl group, or an aryl group; and X is a dicyanamide ion or a thiocyanate ion.

An epoxy resin composition excellent in storage stability and curability is provided. Particularly, a compound of general formula (I) and an epoxy resin composition containing the compound as a curing agent are provided. ##STR00001##
In formula (I), R1 is a hydrocarbon group optionally containing a nitrogen atom and capable of forming a cyclic structure optionally having a substituent; R2 is a hydrogen atom, an alkyl group, or an aryl group or is taken together with R1 to form an unsaturated bond; R3 is a hydrogen atom, an alkyl group, or an aryl group; and X is a dicyanamide ion or a thiocyanate ion.