SYNTHESIS AND CRYSTAL-STRUCTURE OF LI2[(ME3SICH2)3AL-CH2-AL(CH2SIME3)3] - A DILITHIOMETHANE DERIVATIVE

被引：43

作者：

UHL, W ^{[1
]}

LAYH, M ^{[1
]}

MASSA, W ^{[1
]}

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,W-3550 MARBURG,GERMANY

来源：

CHEMISCHE BERICHTE | 1991年 / 124卷 / 07期

关键词：

DILITHIUM BIS(ALUMINATE); METHYLENE-BRIDGED; HEXACOORDINATED CARBON ATOM; DILITHIOMETHANE DERIVATIVE;

D O I：

10.1002/cber.19911240705

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reaction of (trimethylsilyl)methyllithium with the methylene-bridged aluminium tetrachloride Cl2Al-CH2-AlCl2 yields dilithium methylenebis[tris(trimethylsilylmethyl)aluminate] (2) as the only isolable product. All attempts for preparing the tetraalkyl analogue have been unsuccessful. The crystal structure of 2 exhibits a hexacoordinated central carbon atom with short Li-C distances. Both lithium atoms and the methylene hydrogens of the Al-CH2-Al unit are almost coplanar. The discussion of the structure and properties leads to the attractive description of 2 as an adduct of tris(trimethylsilylmethyl)aluminium to dilithiomethane CH2Li2.

引用

页码：1511 / 1516

页数：6

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