一个由一个锂原子跨越的富电子钼-钼五重键。

An electron-rich molybdenum-molybdenum quintuple bond spanned by one lithium atom.

机构信息

Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan.

出版信息

Angew Chem Int Ed Engl. 2012 Jun 25;51(26):6394-7. doi: 10.1002/anie.201200122. Epub 2012 May 29.

DOI:10.1002/anie.201200122

PMID:22644667

Abstract

Take five: A unique quintuply bonded dimolybdenum complex [Mo(2)(μ-Li){μ-HC(N-2,6-Et(2)C(6)H(3))(2)}(3)] (see picture) was synthesized and characterized. The Mo-Mo interaction includes an unexpected bridging Li(+) ion. Calculations indicate the bridging Li(+) ion does not perturb the Mo-Mo bond length (2.0612(4) Å), but results in a relatively small effective Mo-Mo bond order of 3.67.

摘要

休息五分钟

合成并表征了一种独特的五配位二钼配合物[Mo(2)(μ-Li){μ-HC(N-2,6-Et(2)C(6)H(3))(2)}(3)]（见图片）。Mo-Mo 相互作用包括一个意想不到的桥接 Li(+)离子。计算表明，桥接 Li(+)离子不会改变 Mo-Mo 键长（2.0612(4) Å），但导致相对较小的有效 Mo-Mo 键序为 3.67。