Classical versus Bridged Allyl Ligands in Magnesium Complexes: The Role of Solvent

被引：33

作者：

Chmely, Stephen C. ^{[1
]}

Carlson, Christin N. ^{[1
]}

Hanusa, Timothy P. ^{[1
]}

Rheingold, Arnold L. ^{[2
]}

机构：

[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA

[2] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 18期

基金：

美国国家科学基金会;

关键词：

CRYSTAL-STRUCTURE; CATION;

D O I：

10.1021/ja900998t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Magnesium allyl complexes are regularly isolated with classical, sigma-bonded ligands, and this has been thought to be their preferred mode of bonding. Density funtional. theory calculations confirm that such bonding is the most stable mode when coordinated bases are present, but in their absence, pi-bonded forms are expected to be lower in energy. The isolation of the unsolvated [Mg{C-3(SiMe3)(2)H-3}(2)](2) complex supports this prediction, as it is a dinuclear species in which two allyl ligands bridge the metals and display cation-pi interactions with them.

引用

页码：6344 / +

页数：3

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