Silylene-bridged fluorenyl-containing ligands and zirconium complexes with C 1 and C s symmetry: general synthesis and olefin polymerization catalysis

YX Chen, MD Rausch, JCW Chien

Index: Chen, You-Xian; Rausch, Marvin D.; Chien, James C. W. Journal of Organometallic Chemistry, 1995 , vol. 497, # 1-2 p. 1 - 10

Full Text: HTML

Citation Number: 65

Abstract

A variety of new silylene-bridged fluorenyl-containing ligands has been synthesized with good yields via a convenient synthetic route. Two dimethylsilylene-bridged (η 5-indenyl)(η 5- fluorenyl)(1) and (η 5-cyclopentadienyl)(η 5-fluorenyl)(2) zirconocene dichlorides with C1 and Cs molecular symmetry have also been prepared. Upon activation with methyl aluminoxane, the former produced a polypropylene of high molecular weight, but with low ...