Patent ID: 7851072
Filing Date: 2010-12-14
Classification: C07F,C09K,H01L,H05B,Y10S

Abstract:
1. A compound having the formula: wherein M is iridium; (X—Y) is an ancillary ligand; m is a value from 1 to the maximum number of ligands that may be attached to the metal; and m+n is the maximum number of ligands that may be attached to the metal; ring A is an aromatic heterocyclic or a fused aromatic heterocyclic ring having at least one nitrogen atom, N, that is coordinated to the metal M; wherein R′ ring B is an aromatic ring with at least one carbon atom coordinated to metal M, wherein R R each R is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, heteroaryl, or aralkyl; wherein each R is optionally substituted by one or more substituents Z; each Z is independently a halogen, R′, OR′, N(R′) each R′ is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, or heteroaryl.