Patent ID: 7160834

Claim:
A catalyst precursor compound represented by the formula: wherein: (a) N is nitrogen; (b) C is carbon; (c) H is hydrogen; (d) M is a Group-10 metal; (e) R 1 , R 2 , R 3 and R 4 are independently hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl; or R 1 and R 2 or R 3 and R 4 , independently, are connected to form a heteroalicyclic hydrocarbyl ring structure; (f) R 5 and R 6 are, independently, hydrogen, hydrocarbyl radicals, substituted hydrocarbyl, halocarbyl or substituted halocarbyl radicals; or are connected to form a saturated, partially unsaturated or aromatic ring structure provided they do not form a acenaphthene ring structure; and (g) X are, independently, abstractable ligands.