作者:Akira Sekiguchi、Masanobu Tanaka
DOI:10.1021/ja030476t
日期:2003.10.1
The first representative of stable tetrahedranyl anion, tris(trimethylsilyl)tetrahedranyllithium (3), has been synthesized by the reaction of tetrakis(trimethylsilyl)tetrahedrane (2) with methyllithium in tetrahydrofuran. The structural characterization of the tetrahedranyllithium has been achieved by X-ray crystallography, showing that the structure of 3.(TMEDA)1.5 represents a stretched tetrahedron
稳定四面体阴离子的第一个代表,三(三甲基甲硅烷基)四面体基锂(3),是通过四(三甲基甲硅烷基)四面体(2)与甲基锂在四氢呋喃中的反应合成的。四面体基锂的结构表征已通过 X 射线晶体学实现,表明 3.(TMEDA)1.5 的结构代表拉伸的四面体。内环 C(Li)-C(SiMe3) 键长范围为 1.5408(15) 到 1.5441(15) A (av 1.5425(15) A),并且比内环 C(SiMe3)-C(SiMe3) 键长长度,范围从 1.4961(15) 到 1.5009(15) A (av 1.4986(15) A)。甲基和氢取代的四面体也分别通过 3 与硫酸二甲酯和环戊二烯的反应制备。