Materials for an organic electroluminescence element, electroluminescent, display and illuminating devices using the elements
An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one layer of organic layers including a light emitting layer, disposed between the electrodes, in which at least one of the organic layers contains a compound represented by the following general formula: (R 1 to R 18 each independently represent a hydrogen atom or a substituent, and at least one of R 1 to R 8 and R 10 to R 17 represents -L-NR 19 R 20 (R 19 and R 20 each independently represent any of an alkyl group, an aryl group, a heteroaryl group. R 19 and R 20 may be combined to each other to form a ring. L represents a single bond or a divalent linking group). X 1 to X 18 each independently represent a carbon atom or a nitrogen atom, and when X 1 to X 18 represent nitrogen atoms, R 1 to R 18 for bonding do not present.)
1. A compound represented by the following general formula (1):
wherein: R 1 to R 18 each independently represents a hydrogen atom or a substituent, and at least one of R 1 to R 8 and R 10 to R 17 represents-L-NR 19 R 20 ; R 19 and R 20 each independently represent any of an alkyl group, an aryl group, and a heteroaryl group; R 19 and R 20 may be combined to each other to form a ring, L represents a single bond or a divalent linking group, X 1 to X 18 each independently represent a carbon atom or a nitrogen atom, and when X 1 to X 18 represent nitrogen atoms, R 1 to R 18 are not present, and wherein at least one of X 1 to X 18 represents a nitrogen atom.
2. The compound according to claim 1 , in which at least one of R 3 , R 6 , R 12 , and R 15 , of the compound is -L-NR 19 R 20 .
3. The compound according to claim 1 , in which both R 19 and R 20 of the compound are aryl groups.
4. The compound according to claim 1 , in which two of X 1 to X 18 of the compound are nitrogen atoms.
5. The compound according to claim 1 , in which two of R 1 to R 18 of the compound represent -L-NR 19 R 20 .
6. The compound according to claim 1 , in which L of the compound represents a single bond.
7. An organic electroluminescent element comprising
a substrate,
a pair of electrodes comprising an anode and a cathode disposed on the substrate, and
at least one organic layer comprising a light emitting layer disposed between the electrodes,
wherein the light emitting layer comprises a light emitting material represented by the following General Formula (1):
wherein R 1 to R 18 each independently represents a hydrogen atom or a substituent, and at least one of R 1 to R 8 and R 10 to R 17 represents -L-NR 19 R 20 ; R 19 and R 20 each independently represent any of an alkyl group, an aryl group, and a heteroaryl group; R 19 and R 20 may be combined to each other to form a ring, L represents a single bond or a divalent linking group, X 1 to X 18 each independently represent a carbon atom or a nitrogen atom, and when X 1 to X 18 represent nitrogen atoms, R 1 to R 18 are not present, and wherein at least one of X 1 to X 18 represents a nitrogen atom.
8. The organic electroluminescent element according to claim 7 , in which at least one of R 3 , R 6 , R 12 , and R 15 of the compound is -L-NR 19 R 20 .
9. The organic electroluminescent element according to claim 7 , in which both R 19 and R 20 of the compound are aryl groups.
10. The organic electroluminescent element according to claim 7 , in which two of X 1 to X 18 of the compound are nitrogen atoms.
11. The organic electroluminescent element according to claim 7 , in which two of R 1 to R 18 of the compound represent -L-NR 19 R 20 .
12. The organic electroluminescent element according to claim 7 , in which L of the compound represents a single bond.