Light-emitting material for organo-electroluminescence device and for organic electroluminescence device which the material is applied
First Claim
1. A light-emitting material of the formula [1] wherein A is a substituted or non-substituted divalent aromatic group, a substituted or non-substituted hetero-aromatic divalent group, or a divalent group in which 2 to 10 identical or different groups out of the above groups are bonded to each other directly or through at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a linear structural unit having 1 to 20 carbon atoms and optionally containing a hetero-atom, or a non-aromatic ring structural unit, with the proviso that A does not encompass a fused aromatic group or an amino group, each of Ar1 to Ar4 is independently a substituted or non-substituted aromatic group or a substituted or non-substituted fused aromatic group, each of X1 to X4 is independently >
- C═
O, >
SO2, —
(CxH2x)—
O—
(CyH2y)—
(in which each of x and y is an integer of 0 to 20, while x+y=0 in no case), a substituted or non-substituted alkylidene group having 2 to 20 carbons, a substituted or non-substituted alkylene group having 2 to 20 carbon atoms or a substituted or non-substituted divalent alicyclic residue, and each of R1 to R20 is independently a hydrogen atom, a halogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkoxy group, a substituted or non-substituted aromatic group, a substituted or non-substituted hetero-aromatic group or a substituted or non-substituted amino group (provided that adjacent groups of R1 to R5, R6 to R10, R11 to R15, or R16 to R20 may bond to each other to form a fresh ring).
1 Assignment
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Accused Products
Abstract
A light-emitting material which serves to emit light having a high brightness and is almost free of deterioration in light emission, and an organic EL device for which the light-emitting material is adapted, the material having the formula [1],
70 Citations
6 Claims
-
1. A light-emitting material of the formula [1]
wherein A is a substituted or non-substituted divalent aromatic group, a substituted or non-substituted hetero-aromatic divalent group, or a divalent group in which 2 to 10 identical or different groups out of the above groups are bonded to each other directly or through at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a linear structural unit having 1 to 20 carbon atoms and optionally containing a hetero-atom, or a non-aromatic ring structural unit, with the proviso that A does not encompass a fused aromatic group or an amino group, each of Ar1 to Ar4 is independently a substituted or non-substituted aromatic group or a substituted or non-substituted fused aromatic group, each of X1 to X4 is independently > - C═
O, >
SO2, —
(CxH2x)—
O—
(CyH2y)—
(in which each of x and y is an integer of 0 to 20, while x+y=0 in no case), a substituted or non-substituted alkylidene group having 2 to 20 carbons, a substituted or non-substituted alkylene group having 2 to 20 carbon atoms or a substituted or non-substituted divalent alicyclic residue, and each of R1 to R20 is independently a hydrogen atom, a halogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkoxy group, a substituted or non-substituted aromatic group, a substituted or non-substituted hetero-aromatic group or a substituted or non-substituted amino group (provided that adjacent groups of R1 to R5, R6 to R10, R11 to R15, or R16 to R20 may bond to each other to form a fresh ring). - View Dependent Claims (2)
- C═
-
3. A light-emitting material of the formula [4]
wherein A is a substituted or non-substituted divalent aromatic group, a substituted or non-substituted hetero-aromatic divalent group, or a divalent group in which 2 to 10 identical or different groups out of the above groups are bonded to each other directly or through at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a linear structural unit having 1 to 20 carbon atoms and optionally containing a hetero-atom, or a non-aromatic ring structural unit, with the proviso that A does not encompass a fused aromatic group or an amino group, each of X1 to X4 is independently > - C═
O, >
SO2, —
(CxH2x)—
O—
(CyH2x)—
(in which each of x and y is an integer of 0 to 20, while x+y=0 in no case), a substituted or non-substituted alkylidene group having 2 to 20 carbons, a substituted or non-substituted alkylene group having 2 to 20 carbon atoms or a substituted or non-substituted divalent alicyclic residue, and each of R1 to R20 is independently a hydrogen atom, a halogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkoxy group, a substituted or non-substituted aromatic group, a substituted or non-substituted hetero-aromatic group or substituted or non-substituted amino group (provide that adjacent groups of R1 to R5, R6 to R10, R11 to R15, or R16 to R20 may bond to each other to form a fresh ring). - View Dependent Claims (4)
- C═
-
5. A light-emitting material of the formula [5]
wherein A is a substituted or non-substituted divalent aromatic group, a substituted or non-substituted hetero-aromatic divalent group, or a divalent group in which 2 to 10 identical or different groups out of the above groups are bonded to each other directly or through at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a linear structural unit having 1 to 20 carbon atoms and optionally containing a hetero-atom, or a non-aromatic ring structural unit, with the proviso that A does not encompass a fused aromatic group or an amino group, each of R1 to R20 is independently a hydrogen atom, a halogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkoxy group, a substituted or non-substituted aromatic group, a substituted or non-substituted hetero-aromatic group or a substituted or non-substituted amino group (provided that adjacent groups of R1 to R5, R6 to R10, R11 to R15, or R16 to R20 may bond to each other to form a fresh ring), and each of Y1 to Y8 is a substituted or non-substituted alkyl group having 1 to 20 carbon atoms or a substituted or non-substituted aromatic group having 6 to 16 carbon atoms (provided that groups of Y1 and Y2, Y3 and Y4, Y5 and Y6, or Y7 and Y8 may form a substituted or non-substituted alicyclic group having 5 to 7 carbon atoms).
Specification