Patent ID: 9673408
Date: 2017-06-06
CPC Classifications: C07F,C09K,H01L,H05B,Y02E,Y02P

Claim:
1. A metal-carbene complex of the Formula (I): wherein: M is Ir; m is 1, 2, or 3; o is 0, 1, or 2; and the sum of m and o is 3; with the proviso that, if o is 2, the ligands L may be the same or different; L is a monoanionic bidentate ligand of formaula (A),(B),or(C): wherein in formula (A): R R wherein each substituent is independently a C wherein in formula (B): A A R R if A A A A A R R if A wherein each substituent is independently selected from the group consisting of a C wherein in formula (C): D W is C or N; E l is 1 or 2; R in each case two R where the dotted line means an optional bridge between one of the D groups and one of the E groups; where the bridge may be defined as follows: alkylene, arylene, heteroarylene, alkynylene, alkenylene, N wherein each substituent is independently selected from the group consisting of a C R is a group of formula R′ is hydrogen, a C R R R R  wherein X is O, S, NR R R R R  wherein A D is —CO—, —COO—, —S—, —SO—, —SO E is —OR G is E; or a C R R R R R R R R R R R R R R