Patent ID: 7868197
Filing Date: 2011-01-11
Classification: C08F,Y10S

Abstract:
1. A metallocene compound represented by the formula (2): wherein M is a Group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; each A is, independently, a substituted or unsubstituted monocyclic or polycyclic ligand pi-bonded to M, wherein at least one A includes at least one halogen substituent directly bonded to any sp Y is an optional bridging group that is bonded to each A, and is present when y is one and absent when y is zero; y is zero or one; and each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; provided that each A is not a substituted or unsubstituted indeno[1,2-b]indolyl ligand.