Four coordinated platinum and palladium complexes with geometrically distorted charge transfer state and their applications in light emitting devices
Described herein are platinum and palladium compounds with geometrically distorted charge transfer state, applications and methods for the preparation thereof. The platinum and/or palladium compounds described herein are capable of emitting light and can be used in light emitting devices.
1. A compound represented by one of the following formula:
wherein M is platinum or palladium;
V is N or C;
U is N or a group comprising C; and
A is O, N, or a group comprising C or Si.
2. The compound of claim 1 , wherein the compound is a compound of formula:
3. The compound of claim 1 , wherein the compound is a compound of formula:
4. The compound of claim 1 , wherein the compound is a compound of formula:
5. The compound of claim 1 , wherein the compound is a compound of formula:
6. The compound of claim 1 , wherein the compound is a compound of formula:
7. The compound of claim 1 , wherein the compound is a compound of formula:
8. The compound of claim 1 , wherein the compound is a compound of formula:
9. The compound of claim 1 , wherein the compound is a compound of formula:
10. The compound of claim 1 , wherein V is N.
11. The compound of claim 1 , wherein U is N.
12. The compound of claim 1 , wherein A is O.
13. The compound of claim 1 , wherein
14. A light emitting device comprising the compound of claim 1 .
15. An OLED device comprising the compound of claim 1 .
16. The OLED device of claim 15 , wherein the device is a phosphorescent OLED device.
17. A photovoltaic device comprising the compound of claim 1 .