Patent ID: 9680113
Date: 2017-06-13
CPC Classifications: C07F,C09K,H01L

Claim:
1. A compound comprising a first ligand L 1 having the Formula: wherein ring A is an imidazole or its derived carbene, and ring B is a phenyl; wherein X wherein X wherein R wherein at least one of R wherein L is a direct bond or a linker selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein R wherein R wherein M wherein R wherein when R wherein any two adjacent substituents are optionally joined to form a ring, which can be further substituted; wherein the ligand L wherein the Ir can be coordinated to other ligands; and wherein the ligand L