Patent ID: 7365140

Claim:
An organometallic complex having the structure of formula (I) wherein: M is a Group 8 transition metal; L 1 and L 2 are neutral electron donor ligands; X 1 and X 2 are anionic ligands; R 1 is hydrogen, C 1 -C 12 hydrocarbyl, or substituted C 1 -C 12 hydrocarbyl; W is an optionally substituted and/or optionally heteroatom-containing C 1 -C 20 hydrocarbylene linkage; Y is a positively charged Group 15 or Group 16 element substituted with hydrogen, C 1 -C 12 hydrocarbyl, substituted C 1 -C 12 hydrocarbyl, heteroatom-containing C 1 -C 12 hydrocarbyl, or substituted heteroatom-containing C 1 -C 12 hydrocarbyl; Z − is a negatively charged counterion; m is zero or 1; and n is zero or 1; wherein any two or more of L 1 , L 2 , X 1 , X 2 , R 1 , W, and Y can be taken together to form a cyclic group.