Patent ID: 7446216
Filing Date: 2008-11-04
Classification: C07F,C08F,Y10S

Abstract:
1. A metallocene compound represented by the formula (1): wherein: M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; each A is independently a substituted polycyclic arenyl ligand pi-bonded to M selected from the group consisting of a substituted fluorenyl ligand, a substituted cyclopentanaphthyl ligand, and a substituted indenyl ligand, wherein each A ligand includes at least one bromo substituent directly bonded to an sp Y is an optional bridging group containing at least one Group 13, 14, 15, or 16 element and is bonded to any single position of the ring structure of A, y is zero or 1, indicating the absence (y=0) or presence (y=1) of Y; 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.