Patent ID: 7550544
Filing Date: 2009-06-23
Classification: C07F,Y10S

Abstract:
1. A metallocene compound represented by the formula (1): wherein: M is a Group 4, 5 or 6 transition metal atom; E is a substituted or unsubstituted cyclopentadienyl ligand pi-bonded to M; A is a substituted or unsubstituted indenyl ligand, or a substituted or unsubstituted cyclopentanaphthyl ligand that is pi-bonded to M and has a different ring structure than the E ligand; at least one of the A and E ligands includes at least one halogen substituent directly bonded to an sp Y is a bridging group containing at least one Group 13, 14, 15, or 16 element and bonded to any single position of the ring structure of A and to any single position of the ring structure of E; 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.