Patent ID: 8142909

Claim:
An iridium complex of the formula wherein n=1, 2 or 3; R 1a , R 1b , R 1c , R 1d , R 1e , R 1f , R 1g , R 1h , and R 1i are each, independently, H, hydrocarbyl, heteroatom substituted hydrocarbyl, cyano, fluoro, OR 2a , SR 2a , NR 2a R 2b , BR 2a R 2b , or SiR 2a R 2b R 2c , where R 2a-c are each, independently, hydrocarbyl or heteroatom substituted hydrocarbyl, and where any two of R 1a-i and R 2a-c may be linked to form a saturated or unsaturated, aromatic or non-aromatic ring; and X-Y is an ancillary ligand.