Patent ID: 6891006

Claim:
A composition of matter comprising the reaction product of an activator and catalyst precursor where the catalyst precursor comprises: (a) a Group-3 or lanthanide metal; (b) an amidinate or phosphoamidinate connected to the metal where the amidinate or phosphoamidinate comprises: a central carbon atom connected between two nitrogen atoms, two phosphorus atoms, or one nitrogen and one phosphorus atom; an adjuvant moiety connected to each nitrogen or phosphorus atom, respectively, where the adjuvant moiety comprises: two first R-groups, where the first R-groups are independently C 1 -C 30 hydrocarbyl radicals or selected from the group consisting of trifluoromethyl, 2,6-dichlorophenyl, fluoro, chloro, bromo, methoxy, or dimethylamino radicals; an aryl group connected to both of the first R-groups where each first R-group connects to the aryl group at a position adjacent to the adjuvant moiety nitrogen or adjuvant moiety phosphorus connection; and at least one second R-group where the second R-group is independently hydrogen or a C 1 -C 30 hydrocarbyl radical or selected from the group consisting of trifluoromethyl, 2,6-dichlorophenyl, fluoro, chloro, bromo, methoxy, or dimethylamino radicals; an apical substituent that connects to the central carbon atom where the apical substituent is selected from C 1 -C 30 hydrocarbyl radicals; (c) 0, 1, or 2 Lewis bases connected to the metal; (d) a ligand abstractable by an activator; and (e) a ligand in which an olefin can insert between it and the metal.