Ge_4Cl_4[MCp(CO)_3]_4 (M = Cr, Mo, W): A Series of Transition Metal Substituted Four-membered Cyclogermanes

Lars Prei?ing; Claudio Schrenk; Andreas Schnepf

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Ge_4Cl_4[MCp(CO)_3]_4 (M = Cr, Mo, W): A Series of Transition Metal Substituted Four-membered Cyclogermanes

机译：ge_4cl_4 [mcp（co）_3] _4（m = cr，mo，w）：一系列过渡金属取代四元环委员会

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The reaction of GeCl_2·dioxane with the sodium salts NaMCp(CO)_3 (M = Cr, Mo, W) leads to new four-membered ring compounds Ge_4Cl_4[MCp(CO)_3]_4, where the remaining chlorine atom cannot be substituted by another MCp(CO)_3 substituent. A large excess of the sodium salts only leads to some minor side-reactions. All Ge_4- compounds exhibit a non-planar four-membered Ge_4 ring, which can be traced back to electrostatic effects as shown by quantum chemical calculations. Furthermore, cluster build-up reactions might be possible due to the halide substituents in the new ring compounds of germanium, showing that GeCl_2·dioxane is an excellent starting material for the synthesis of cluster compounds of germanium.

机译：GeCl_2·二氧六环与钠盐NaMCp（CO）_3（M=Cr，Mo，W）反应生成新的四元环化合物Ge_4Cl_4[MCp（CO）_3]_4，其中剩余的氯原子不能被另一个MCp（CO）_3取代基取代。大量过量的钠盐只会导致一些轻微的副反应。所有的Ge_4-化合物都表现出非平面的四元Ge_4环，这可以追溯到量子化学计算显示的静电效应。此外，由于锗的新环化合物中含有卤化物取代基，可能会发生簇合反应，这表明GeCl_2·二恶烷是合成锗簇合物的良好起始材料。

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来源
《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2020年第13期|共6页
作者
Lars Prei?ing; Claudio Schrenk; Andreas Schnepf;
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作者单位

Institut für Anorganische Chemie Universit?t Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany;

Institut für Anorganische Chemie Universit?t Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany;

Institut für Anorganische Chemie Universit?t Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany;

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原文格式 PDF
正文语种 eng
中图分类化学;
关键词
Quantum chemical calculations; Germanium; Ring compounds; X-ray diffraction;

机译：量子化学计算;锗;环化合物;X射线衍射;

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Ge_4Cl_4[MCp(CO)_3]_4 (M = Cr, Mo, W): A Series of Transition Metal Substituted Four-membered Cyclogermanes

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