Abstract
The title complexes Me 4Si 2(1-C 5H 3-3- t Bu) 2MCl 2 (M=Ti, 1; M=Zr, 2) have been prepared by reaction of Li 2Me 4Si 2(C 5H 3-3- t Bu) 2 with MCl 4·2THF in refluxing THF. Rac/ meso ratio of about 2/3 was obtained for the titanocene complex 1. But for the zirconocene 2, only meso isomer was obtained. The crystal structures of meso- 1 and meso- 2 were determined. Their catalytic properties for ethylene polymerization have also been studied with MAO as a cocatalyst.
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