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首页> 外文期刊>Chemistry: A European journal >Two metalloid Ga-18 clusters and their topological and energetic relation to the element modification beta-Ga and Ga-II
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Two metalloid Ga-18 clusters and their topological and energetic relation to the element modification beta-Ga and Ga-II

机译：两个准金属Ga-18团簇及其与元素修饰β-Ga和Ga-II的拓扑和能量关系

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摘要

The topology of many modifications of elemental gallium is reflected in the large variety of metalloid Ga clusters that have been isolated as intermediates on the way from the metastable molecular GaX species (X=Cl, Br, I) by means of disproportionation to the bulk metal. Herein, we report the synthesis and characterization of the first metalloid cluster anion [Ga-18-(PtBU2)(10)](3-) with the singular core topology that resembles the gallium high-pressure modification Ga-II. The stabilization of the cluster anion through ion-pair contacts with a chainlike "Li4Br2 backbone" is discussed. Furthermore, the compound is discussed in context of the other metalloid clusters Ga18R8 and Ga22R8 (R=SitBu(3)) and their structural relation to the elemental modifications Ga-III and beta-Ga, respectively.
机译：元素镓的许多修饰的拓扑结构反映在各种各样的准金属Ga簇中，这些簇通过中间歧化从亚稳分子GaX物种（X = Cl，Br，I）作为中间体分离出来，作为中间体。在这里，我们报告的合成和表征的第一个准金属簇阴离子[Ga-18-（PtBU2）（10）]（3-）具有类似于镓高压改性Ga-II的单核拓扑。讨论了通过与链状“ Li4Br2主链”的离子对接触来稳定簇状阴离子的方法。此外，该化合物是在其他准金属簇Ga18R8和Ga22R8（R = SitBu（3））及其与元素修饰Ga-III和β-Ga的结构关系的背景下讨论的。

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