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 ...
