Patent ID: 7488435

Claim:
A copper complex, (I), wherein L is selected from the group consisting of C 2 -C 15 olefins, C 2 -C 15 alkynes, nitriles, aromatic heterocycles, and phosphines; n is 1 or 2; and R 1 and R 2 are independently selected from the group consisting of H, C 1 -C 4 alkyl, fluorine-substituted C 1 -C 4 alkyl, and Si(R 4 ) 3 , where each R 4 is independently C 1 -C 4 alkyl; and R 3 is independently selected from C 1 -C 4 alkyl, fluorine-substituted C 1 -C 4 alkyl, and Si(R 4 ) 3 , where each R 4 is independently selected from C 1 -C 4 alkyl.