MONOMER-DIMER EQUILIBRIA IN HOMODINUCLEAR AND HETERODINUCLEAR CATIONIC ALKYLZIRCONIUM COMPLEXES AND THEIR ROLE IN POLYMERIZATION CATALYSIS

被引:343
作者
BOCHMANN, M
LANCASTER, SJ
机构
[1] School of Chemical Sciences, University of East Anglia, Norwich
关键词
D O I
10.1002/anie.199416341
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reactive cationic 14‐electron complex 2 is stabilized by formation of methyl‐bridged binuclear complexes of type 1 and 3. The compounds are highly active catalysts for the polymerization of ethylene and propylene. As expected for the dissociation equilibrium shown, neutral alkyl metal compounds in excess act as inhibitors; thus, the activity of 3 decreases significantly with increasing AlMe3 concentration. (Figure Presented.) Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany
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页码:1634 / 1637
页数:4
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