New tetrameric alkylmetal boryloxides [(μ3-R2BO)MR′]4 of zinc and cadmium with heterocubane structure

被引：18

作者：

Lulinski, S ^{[1
]}

Madura, I ^{[1
]}

Serwatowski, J ^{[1
]}

Zachara, J ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland

来源：

INORGANIC CHEMISTRY | 1999年 / 38卷 / 22期

关键词：

D O I：

10.1021/ic990412c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The treatment of diethylzinc with (9-BBN)(2)O afforded a tetrameric species [(mu(3)-9-BBN-9-O)ZnEt](4) (1) in high yield due to the selective cleavage of metal-carbon bond whereas (Bu2Zn)-Zn-t was found to be inert toward (9-BBN)(2)O. The reaction of dimethylcadmium with (9-BBN)(2)O resulted in the formation of the analogue [(mu(3)-9-BBN-9-O)CdMe](4) (2). Reactions of tetraethyldiboroxane Et4B2O with Et2Zn, (Bu2Zn)-Zn-t and Me2Cd were also investigated showing its different behavior in each case. The structures of 1 and 2 were determined by X-ray diffraction, and they are the first for group 12 metal boryloxides with a cubane-like M4O4 core. The boron-oxygen interaction affecting deformation of the central core is discussed based on X-ray as well as multinuclear NMR spectroscopy data.

引用

页码：4937 / 4941

页数：5

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