Enhanced reactivity of cationic vs neutral hafhocene complexes in stoichiometric and catalytic σ-bond metathesis reactions involving Si-H and Si-C bonds

被引：39

作者：

Sadow, AD ^{[1
]}

Tilley, TD ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 22期

关键词：

D O I：

10.1021/om010737c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A comparison of the cation-like complex CpCp*HfH(mu -H)B(C6F5)(3) with the neutral analogue CpCp*HfHCl reveals increased activity toward sigma -bond metathesis for the more electrophilic, cationic complex. A catalytic transformation of PhSiH3 to Ph2SiH2 and SiH4 by CpCp*HfH(mu -H)B(C6F5)(3) appears to occur by sigma -bond metathesis of the Si-C bond, which occurs concurrently with dehydropolymerization to highly crosslinked polysilanes.

引用

页码：4457 / 4459

页数：3

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