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Issue 5, 1994
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New ansa-metallocenes of the Group 4 transition metals as homogeneous catalysts for the polymerization of propene and styrene

Abstract

The ansa-bridged metallocenes [M{CR2(η-C5H4)(η-C9H6)}Cl2], [M = Ti, Zr or Hf; CR2= CMe2, CPh2 or C(CH2)5] have been prepared. The crystal structure of [Zr{CMe2(η-C5H4)(η-C9H6)}Cl2] has been determined. Some of these new ansa-metallocenes in the presence of methylaluminoxane (AlMeO)n give homogeneous catalysts, which for the polymerization of propene yield isotactic rich polypropene and of styrene yield syndiotactic polystyrene.

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Article information


J. Chem. Soc., Dalton Trans., 1994, 657-665
Article type
Paper

New ansa-metallocenes of the Group 4 transition metals as homogeneous catalysts for the polymerization of propene and styrene

M. L. H. Green and N. Ishihara, J. Chem. Soc., Dalton Trans., 1994, 657
DOI: 10.1039/DT9940000657

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