A Polar Copper-Boron One-Electron σ-Bond

被引：85

作者：

Moret, Marc-Etienne ^{[1
]}

Zhang, Limei ^{[1
]}

Peters, Jonas C. ^{[1
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 10期

基金：

瑞士国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

X-RAY-ABSORPTION; SPIN-RESONANCE; HEXAMETHYLDISILANE; RADICALS;

D O I：

10.1021/ja4006578

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Virtually all chemical bonds consist of one or several pairs of electrons shared by two atoms. Examples of sigma-bonds made of a single electron delocalized over two neighboring atoms were until recently found only in gas-phase cations such as H-2(+) and Li-2(+) and in highly unstable species generated in solid matrices. Only in the past decade was bona fide one-electron bonding observed for molecules in fluid solution. Here we report the isolation and structural characterization of a thermally stable compound featuring a Cu-B one-electron bond, as well as its oxidized (nonbonded) and reduced (two-electrons-bonded) congeners. This triad provides an excellent opportunity to study the degree of sigma-bonding in a metalloboratrane as a function of electron count.

引用

页码：3792 / 3795

页数：4

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