Patent ID: 7279232

Claim:
A compound having the structure: wherein M is a metal having an atomic weight greater than 40; R 3 ′ is a substituent selected from the group consisting of alkyl, heteroallcyl, aryl, heteroaryl, and aralkyl, wherein R 3 ′ is optionally substituted by one or more substituent Z; R 5 is a substituent selected from the group consisting of aryl and heteroaryl, wherein aryl or heteroaryl is unsubstituted or optionally, substituted with one or more non-aromatic groups; R 4 ′ is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, heteroaryl, or aralkyl; R 3 , R 4 , and R 6 are each independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, alkylaryl, CN, perfluoroalkyl, trifluorovinyl, CO 2 R, C(O)R, NR 2 , NO 2 , OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl or a heterocyclic group; each R is independently H, alkyl, alkenyl, alkynyl, heteroalkyl, aryl, heteroaryl, or aralkyl; wherein R is optionally substituted by one or more substituent Z; each Z is independently a halogen, R′, O—R′, N(R′) 2 , SR′, C(O)R′, C(O)OR′, C(O)N(R′) 2 , CN, NO 2 , SO 2 , SOR′, SO 2 R′, or SO 3 R′; each R′ is independently H, alkyl, perhaloalkyl, alkenyl, alkynyl, heteroalkyl, aralkyl, aryl, or heteroaryl; (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.