STEREOSELECTIVE SYNTHESIS OF A GERMANIUM-BRIDGED ZIRCONOCENE FOR TEMPERATURE-INVARIANT PROPYLENE POLYMERIZATIONS

被引：44

作者：

CHEN, YX ^{[1
]}

RAUSCH, MD ^{[1
]}

CHIEN, JCW ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT CHEM,DEPT POLYMER SCI & ENGN,MAT RES LABS,AMHERST,MA 01003

来源：

ORGANOMETALLICS | 1994年 / 13卷 / 03期

关键词：

D O I：

10.1021/om00015a002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Synthesis of rac-[((1,2,3,4-tetraphenyl-1,3-butadiene-1,4-diyl)germylene)bis(1-eta5-indenyl)]dichlorozirconium (1) was achieved with substantial suppression of the undesired meso diastereomer as predicted by MM2 force field calculations. The corresponding zirconocenium ion of 1 polymerizes propylene with high catalytic activity and stereospecificity to very high molecular weight. The characteristics of this catalysis are essentially independent of polymerization temperature over a broad temperature range.

引用

页码：748 / 749

页数：2

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