Patent ID: 8470208

Claim:
An organometallic complex having the formula: MY n Z where: n is 1, 2, or 3; M is a metal in a +2, +3, or +4 oxidation state; Y is the same or different at each occurrence and is selected from the group consisting of 8-hydroxyquinolate and a substituted 8-hydroxyquinolate; and Z has the formula I or II; wherein R 4 and R 5 are independently selected and each is one or more of a substituent selected from the group consisting of H, alkyl, substituted alkyl, aryl, substituted aryl, F, CN, a solvent-solubilizing group, and a Tg enhancing group; and wherein at least one Y is a substituted 8-hydroxyquinolate having the formula where: R 1 and R 2 are the same or different at each occurrence and each represents one or more of a substituent selected from the group consisting of H, alkyl, fluoroalkyl, aryl, fluoroaryl, alkylaryl, alkoxy, aryloxy, fluoroalkoxy, fluoroaryloxy, heteroalkyl, fluoroheteroalkyl, heteroaryl, fluoroheteroaryl, heteroalkylaryl, heteroalkoxy, heteroaryloxy, fluoroheteroalkoxy, fluoroheteroaryloxy, cyano, dialkylamine, diarylamine, halide, wherein at least one of R 1 and R 2 is selected from the group consisting of an aryl group having 6-20 carbons and a heteroaryl group having 4-20 carbons; and R 3 is selected from the group consisting of H, an alkyl group, and a substituted alkyl group.