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Synthesis, molecular structure, and polymerization reactivity of ethylenebis(1,3-dimethylcyclopentadienyl)zirconium dichloride |
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| Authors: | Bun Yeoul Lee Young Heui Kim Young Chul Won Chang Bo Shim Dong Mok Shin Young Keun Chung |
| Affiliation: | a Department of Molecular Science and Technology, Ajou University, San 5 Wonchondong, Suwon 442-749, Republic of Korea b Department of Chemistry and the Center for Molecular Catalysis, College of Natural Sciences, Seoul National University, Seoul 151-742, Republic of Korea |
| Abstract: | An ethylene-bridged zirconocene complex bearing methyl substituents only on the cyclopentadienyl carbons adjacent to bridge point, ethylenebis(1,3-dimethylcyclopentadienyl)zirconium dichloride (5) was synthesized. Crystal structure of 5 was determined. The complex, 5, when activated with MAO, shows better comonomer incorporation ability than [Ph2C(Fluo)(Cp)]ZrCl2 in the ethylene–norbornene copolymerization but it is not better than rac-Et(Ind)2ZrCl2 for the ethylene-1-hexene copolymerization in terms of activity and comonomer incorporation. |
| Keywords: | Metallocene Zirconium Polymerization Methylaluminoxane |
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