Platinum complex compound and organic electroluminescent device
View Patent ↗An organic electroluminescent device is provided and has at least one organic layer between a pair of electrodes. The organic compound contains a compound represented by the following formula (I): Z 1 and Z 2 each represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom, Q represents a nitrogen-containing aromatic 5-membered ring having one or two nitrogen atoms, L 1 and L 2 each represents a single bond or a divalent group, and n represents 0 or 1.
1. A compound represented by formula (IIB):
wherein R 21 , R 22 , R 51 , R 52 , R 53 , R 54 , R 55 , R 56 , R 61 and R 62 each independently represents a hydrogen atom or a substituent.
2. The compound as described in claim 1 , wherein the formula (IIB) is represented by formula (IIC):
wherein R 21 , R 22 , R 51 , R 52 , R 53 , R 54 , R 55 and R 56 each independently represents a hydrogen atom or a substituent.
3. The compound as described in claim 2 , wherein the formula (IIC) is represented by formula (IID):
wherein R 51 , R 52 , R 53 , R 54 , R 55 and R 56 each independently represents a hydrogen atom or a substituent, and R 21 represents a substituent.
4. The compound as described in any one of claims 1 , 2 and 3 , wherein the substituent is a substituent selected from the group consisting of an alkyl group containing from 1 to 20 carbon atoms, an alkenyl group containing from 2 to 10 carbon atoms, an aryl group containing from 6 to 20 carbon atoms, an amino group containing from 0 to 20 carbon atoms, an alkoxy group containing from 1 to 20 carbon atoms, an aryloxy group containing from 6 to 20 carbon atoms, an acyl group containing from 1 to 20 carbon atoms, an alkoxycarbonyl group containing from 2 to 20 carbon atoms, an alkylthio group containing from 1 to 20 carbon atoms, a sulfonyl group containing from 1 to 20 carbon atoms, a hydroxyl group, a halogen atom, a cyano group, a nitro group and a 5- to 7-membered hetero ring group.
5. The compound as described in claim 3 , wherein R 51 , R 53 , R 54 and R 56 each represents a hydrogen atom.
6. An organic electroluminescent device comprising:
a pair of electrodes; and
at least one organic layer between the pair of electrodes, the at least one organic layer containing a compound represented by formula (III):
wherein Z 1 and Z 2 each independently represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom thereof, L 1 represents an optionally substituted methylene group, and R 31 , R 32 and R 33 each independently represents a hydrogen atom or a substituent.
7. An organic electroluminescent device comprising:
a pair of electrodes; and
at least one organic layer between the pair of electrodes, the at least one organic layer containing a compound represented by formula (IV):
wherein Z 1 and Z 2 each independently represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom thereof, L 1 represents an optionally substituted methylene group, and R 41 and R 42 each independently represents a hydrogen atom or a substituent.
8. An organic electroluminescent device comprising:
a pair of electrodes; and
at least one organic layer between the pair of electrodes, the at least one organic layer containing a compound represented by formula (V):
wherein Z 1 and Z 2 each independently represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom thereof, L 1 represents an optionally substituted methylene group, and R 61 and R 62 each independently represents a hydrogen atom or a substituent.
9. An organic electroluminescent device comprising:
a pair of electrodes; and
at least one organic layer between the pair of electrodes, the at least one organic layer containing a compound represented by formula (II):
wherein Z 1 and Z 2 each independently represents a nitrogen-containing aromatic 6-membered ring coordinating to platinum atom at the nitrogen atom thereof, L 1 represents an optionally substituted methylene group, and R 21 and R 22 each independently represents a hydrogen atom or a substituent.
10. The organic electroluminescent device as described in claim 9 , wherein the formula (II) is represented by formula (IIA):
wherein L 1 represents an optionally substituted methylene group, and R 21 , R 22 , R 51 , R 52 , R 53 , R 54 , R 55 and R 56 each independently represents a hydrogen atom or a substituent.
11. The organic electroluminescent device as described in claim 10 , wherein the formula (IIA) is represented by formula (IIB):
wherein R 21 , R 22 , R 51 , R 52 , R 53 , R 54 , R 55 , R 56 , R 61 and R 62 each independently represents a hydrogen atom or a substituent.
12. The organic electroluminescent device as described in claim 11 , wherein the formula (IIB) is represented by formula (IIC):
wherein R 21 , R 22 , R 51 , R 52 , R 53 , R 54 , R 55 and R 56 each independently represents a hydrogen atom or a substituent.
13. The organic electroluminescent device as described in claim 12 , wherein the formula (IIC) is represented by formula (IID):
wherein R 51 , R 52 , R 53 , R 54 , R 55 and R 56 each independently represents a hydrogen atom or a substituent, and R 21 represents a substituent.
14. The organic electroluminescent device as described in any one of claims 8 to 9 , wherein the substituent is a substituent selected from the group consisting of an alkyl group containing from 1 to 20 carbon atoms, an alkenyl group containing from 2 to 10 carbon atoms, an aryl group containing from 6 to 20 carbon atoms, an amino group containing from 0 to 20 carbon atoms, an alkoxy group containing from 1 to 20 carbon atoms, an aryloxy group containing from 6 to 20 carbon atoms, an acyl group containing from 1 to 20 carbon atoms, an alkoxycarbonyl group containing from 2 to 20 carbon atoms, an alkylthio group containing from 1 to 20 carbon atoms, a sulfonyl group containing from 1 to 20 carbon atoms, a hydroxyl group, a halogen atom, a cyano group, a nitro group and a 5- to 7-membered hetero ring group.