Tetrasilatetrahedranide: A silicon cage anion

被引：65

作者：

Ichinohe, M ^{[1
]}

Toyoshima, M ^{[1
]}

Kinjo, R ^{[1
]}

Sekiguchi, A ^{[1
]}

机构：

[1] Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 44期

关键词：

D O I：

10.1021/ja0305050

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first silicon cage anion, tris{bis[bis(trimethylsilyl)methyl](methyl)silyl}tetrasilatetrahedranide (6-), has been synthesized by the reaction of tetrakis{bis[bis(trimethylsilylmethyl](methyl)silyl}tetrasilatetrahedrane with potassium graphite in diethyl ether by reductive cleavage of exocyclic Si?Si bond. The structural characterization of K+(18-crown-6)·6- has been achieved by X-ray crystallography, showing that 6- is a separated ion pair and the tetrasilatetrahedranide moiety has a significantly distorted tetrahedrane skeleton containing one inverted tetrahedral (umbrella type) silicon atom. The four silicon atoms in the Si4 skeleton are equivalent on the NMR time scale due to the migration of the Dis2MeSi substituent. Copyright © 2003 American Chemical Society.

引用

页码：13328 / 13329

页数：2

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