| 摘要 |
Compounds having a metal M complexed to a ligand L containing a substituted imidazole carbene group, which is represented Formula (I), below:;
wherein ring B is a 5-member aromatic heterocyclic ring containing at least one heteroatom selected from the group consisting of N, O, and S; wherein ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring; wherein RA represents mono, di, tri, tetra substitutions or no substitution; wherein R1 represents mono, di, or tri substitution or no substitution; wherein each RA, R1 and R2 is independently selected from various possible substituents; wherein Z1 is nitrogen or carbon; and wherein the ligand is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand. Devices, such as organic light emitting devices (OLEDs) that comprise such compounds are also provided. |
| 主权项 |
1. A compound comprising a ligand L3 of Formula (I): wherein ring B is a 5-member aromatic heterocyclic ring containing at least one heteroatom selected from the group consisting of N, O, and S; wherein ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring; wherein RA represents mono, di, tri, tetra substitutions or no substitution; wherein R1 represents mono, di, or tri substitution or no substitution; wherein each RA, R1 and R2 is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein any two adjacent substituents are optionally joined to form a ring, which can be further substituted; wherein Z1 is nitrogen or carbon; wherein the ligand L3 is coordinated to a metal M1; and wherein the ligand L3 is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand. |
