Patent ID: 7816016

Claim:
A complex having Formula I wherein: R 1 is indole, indoline, carbazole, tetrahydrocarbazole, phenanthroline, phenazine, phenanthridine, quinoxaline, pyrrole, azole, oxazole, or pyridine, each of which is attached via nitrogen; or R 1 is CHAr 2 ; R 2 is H, C n F 2n+1 , C n F 2n+1 SO 2 , COOR 4 , or CN; R 3 is H, C n F 2n+1 , C n F 2n+1 SO 2 , COOR 4 , or CN; R 4 is the same or different at each occurrence and is H, alkyl, or aryl; each Ar is independently an aryl group; L′ is a polydentate ligand that is not a phenylpyridine, phenylpyrimidine, or phenylquinoline; L″ is a monodentate ligand, and is not a phenylpyridine, phenylpyrimidine, or phenylquinoline; m is 1, 2 or 3; n is an integer from 1 through 20; y is 0, 1 or 2; and z is 0 or an integer from 1 through 4, with the proviso that the compound is charge neutral and the iridium is hexacoordinate.