A Polar Copper鈥揃oron One-Electron 蟽-Bond
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- 作者：Marc-Etienne Moret ; Limei Zhang ; Jonas C. Peters
- 刊名：The Journal of the American Chemical Society
- 出版年：2013
- 出版时间：March 13, 2013
- 年：2013
- 卷：135
- 期：10
- 页码：3792-3795
- 全文大小：229K
- 年卷期：v.135,no.10(March 13, 2013)
- ISSN：1520-5126
文摘
Virtually all chemical bonds consist of one or several pairs of electrons shared by two atoms. Examples of 蟽-bonds made of a single electron delocalized over two neighboring atoms were until recently found only in gas-phase cations such as H2+ and Li2+ 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鈥揃 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 蟽-bonding in a metalloboratrane as a function of electron count.