Molecular Compounds containing SiAl_4, SiAl_3, and GeAl_4 Units: Sythesis and Structure of Si(AlCl_2 . OEt_2)_4, Ge(AlCl_2 . OEt_2)_4, and HSi(Cp~*AlBr)_3

Andreas Purath; Carsten Dohmeier; Elke Baum; Ralf Koppe; Hansgeorg Schnockel

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Molecular Compounds containing SiAl_4, SiAl_3, and GeAl_4 Units: Sythesis and Structure of Si(AlCl_2 . OEt_2)_4, Ge(AlCl_2 . OEt_2)_4, and HSi(Cp~*AlBr)_3

机译：包含SiAl_4，SiAl_3和GeAl_4单元的分子化合物：Si（AlCl_2。OEt_2）_4，Ge（AlCl_2。OEt_2）_4和HSi（Cp〜* AlBr）_3的合成和结构

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In the scope of our investigations of the reactivity and the potential for synthesis of solutions of Al~I halides we performed reactions between these solutions and SiCp_2~* or GeCp_2~*, respectively. From these reactions we could isolate an unusual cluster with a central Al_(14)Si unit, described elsewhere, and the compounds Si(AlCl_2 . OEt_2)_4, Ge(AlCl_2 . OEt_2)_4, and HSi(Cp~*AlBr)_3, which will be presented and discussed here. In these species the Si respectively the Ge atoms are connected to 4 respectively 3 Al atoms. This bonding results in strong negative polarized Si/Ge centres. The change of the polarization with respect to "normal" Si-R or Ge-R linking leads to a drastic weakening of the Si-R respectively the Ge-R bonds.

机译：在我们研究Al〜I卤化物溶液的反应性和合成潜力的范围内，我们分别进行了这些溶液与SiCp_2〜*或GeCp_2〜*的反应。从这些反应中，我们可以分离出一个不寻常的簇，该簇具有中心Al_（14）Si单元（在别处描述）以及化合物Si（AlCl_2。OEt_2）_4，Ge（AlCl_2。OEt_2）_4和HSi（Cp〜* AlBr）_3 ，将在此处介绍和讨论。在这些物种中，Si或Ge原子分别与4个或3个Al原子相连。这种键合导致强烈的负极化Si / Ge中心。相对于“正常” Si-R或Ge-R连接的极化改变导致Si-R或Ge-R键的急剧减弱。

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来源
《Zeitschrift fur Anorganische und Allgemeine Chemie》 |1999年第12期|共5页
作者
Andreas Purath; Carsten Dohmeier; Elke Baum; Ralf Koppe; Hansgeorg Schnockel;
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正文语种 eng
中图分类化学;
关键词
Main group elements; Aluminium; Si-Al bond; Ab initio calculations; X-ray structure analysis;

机译：主族元素;铝;Si-Al键;Ab从头算;X射线结构分析;

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1. Molecular Compounds containing SiAl_4, SiAl_3, and GeAl_4 Units: Sythesis and Structure of Si(AlCl_2 . OEt_2)_4, Ge(AlCl_2 . OEt_2)_4, and HSi(Cp~*AlBr)_3 [J] . Andreas Purath, Carsten Dohmeier, Elke Baum, Zeitschrift fur Anorganische und Allgemeine Chemie . 1999,第12期

机译：包含SiAl_4，SiAl_3和GeAl_4单元的分子化合物：Si（AlCl_2。OEt_2）_4，Ge（AlCl_2。OEt_2）_4和HSi（Cp〜* AlBr）_3的合成和结构
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Molecular Compounds containing SiAl_4, SiAl_3, and GeAl_4 Units: Sythesis and Structure of Si(AlCl_2 . OEt_2)_4, Ge(AlCl_2 . OEt_2)_4, and HSi(Cp~*AlBr)_3

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