Patent ID: 7709100
Filing Date: 2010-05-04
Classification: C07F,C09K,H01L,H05B,Y10S

Abstract:
1. A compound having the formula: wherein M is a metal selected from Ir, Pt, Rh or Pd; (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 having an unsubstituted alkyl substituent at the R′ wherein the ring A can be optionally substituted with one or more substituents at the R′ additionally or alternatively the R′ ring B is an aromatic ring with at least one carbon atom coordinated to metal M, wherein ring B can be optionally substituted with one or more substituents at the R R alternatively, R′ each R is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, heteroaryl, or aralkyl; each Z is independently a halogen, R′, OR′, N(R′) each R′ is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, or heteroaryl; and wherein R