Breaking the 1.80 Å Barrier of the Cr-Cr Multiple Bond Between CrII Atoms

被引：56

作者：

Horvath, Steven ^{[1
]}

Gorelsky, Serge I. ^{[1
]}

Gambarotta, Sandro ^{[1
]}

Korobkov, Ilia ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ctr Catalysis Res & Innovat, Ottawa, ON K1N 6N5, Canada

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 51期

基金：

加拿大自然科学与工程研究理事会;

关键词：

agostic interactions; chromium; density functional calculations; metal-metal interactions; multiple bonds;

D O I：

10.1002/anie.200804048

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Short and sweet: By replacing one of the two guanidinate ligands in the monomeric complex [{(Me3Si) 2NC(NCy)2}2Cr] with a methyl group, the dimeric complex [{(Me3Si)2NC(NCy)2CrMe}2] (see picture) is generated. This species contains the shortest reported Cr-Cr quadruple bond. The bonding of the methyl group indicates a Cr-H-CH 2Cr bridging agostic interaction which likely contributes to the short Cr-Cr contact. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：9937 / 9940

页数：4

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