Patent ID: 8058461
Filing Date: 2011-11-15
Classification: C07F,Y10S

Abstract:
1. A transition metal compound represented by the formula: where M is a group 3, 4, 5 or 6 metal; J is a group 15 or 16 atom, and when J is a group 15 metal, m is 1, indicating the presence of R′, and when J is a group 16 metal, m is zero, indicating the absence of R; G is a bridging group and n is 1, 2 or 3 indicating the number of atoms in the direct chain between the indenyl ring and the ligand J; R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are independently selected from a hydrogen, fluoro, hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl radical, and two or more adjacent R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 can join together to form a cyclic group fused to the indenyl ring; R′ is selected from a hydrocarbyl, halohydrocarbyl, or substituted hydrocarbyl radical; X is a univalent ionic ligand, L is a Lewis base ligand and b is 0, 1 or 2 representing the presence (b=1 or 2) or absence (b=0) of L, provided that when n is 2, G is not O—SiR 2 , or R 4 Ph, and when n is 3, G is not SiR 2 (R 4 Ph), where Ph is phenyl and each R is as defined for R′.