Chemistry of gallium .6. Tris(trimethylsilyl)silylgallium(I) - An experimental and theoretical study

被引：68
作者：
Linti, G
机构：
[1] Inst. für Anorganische Chemie, Universität Karlsruhe, D-76128 Karlsruhe
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1996年 / 520卷 / 1-2期
关键词：
gallium silyl; gallium(I) compounds; ab initio; silyl derivatives; hypersilyl gallium;
D O I：
10.1016/0022-328X(96)06317-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The gallium(I)tris(trimethylsilyl)silyl compound {GaSi(SiMe(3))(3)}(4) (1) is obtained by reaction of Ga2Cl4-2dioxane with LiSi(SiMe(3))(3)-3THF. The crystal structure of 1 reveals a tetramer with a nearly regular tetrahedral framework of gallium atoms. The gallium-gallium distances average 258.4pm. Ab initio calculations on various substituted gallium tetrahedrons showed a greater stability of silyl-substituted cages compared with organyl substituted ones. Crystal data, with Mo K alpha radiation are as follows: {GaSi(SiMe(3))(3)}(4) . Si(SiMe(3))(4) (1), a, b = 1923.3(3)pm, c = 2671.2(4)pm, V = 9.881(3)nm(3); tetragonal space group P4/ncc; Z = 4; 1513 (I>2 sigma(I)) data; R1 = 0.068.
引用
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页码：107 / 113
页数：7
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