Synthesis of cyclotetrasiloxane [(Me)(C6H4CH2NMe2-2)-SiO]4 and its structural analysis

被引：3

作者：

Lang, H ^{[1
]}

Brüning, K ^{[1
]}

Rheinwald, G ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Lehrstuhl Anorgan Chem, Fak Nat Wissensch, Inst Chem, D-09111 Chemnitz, Germany

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2001年 / 633卷 / 1-2期

关键词：

hypervalent; silicon; cyclotetrasiloxane; X-ray structure analysis;

D O I：

10.1016/S0022-328X(01)01007-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The cyclotetrasiloxane [(Me)(C6H4CH2NMe2-2)SiO](4) (2) can be synthesized by hydrolysis of the pentacoordinated silicon compounds (C6H4CH2NMe2-2)MeSiCl2 (1) or (C6H4CH2NMe2-2)MeSi(OR)(2) (3a, R=CH2CH=CH2; 3b, R=CH2C=CH) in quantitative yield. The solid-state structure of 2 is reported. Compound 2 crystallizes in the triclinic space group P-1 with the following cell parameters: a = 9.575(2), b = 15.018(3), c = 16.021(4) Angstrom; alpha = 94.72(12), beta = 90.96(2), gamma = 103.75(2)degrees; V = 2228.5(9) Angstrom (3) and Z = 2. Due to sterical hindrance the silicon atoms in 2 are tetra-coordinated, which differs from the starting materials 1, 3a and 3b, where hypervalent silicon centers exist. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：157 / 161

页数：5

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