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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Theoretical investigation of binary and ternary metal clusters derived from [Y10M](n-) zintl ions
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Theoretical investigation of binary and ternary metal clusters derived from [Y10M](n-) zintl ions

机译:[Y10M](n-)zintl离子衍生的二元和三元金属簇的理论研究

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The pseudo element concept is applied to isolated Zintl anions [Y10M](n-), where M is Ni or Zn, and Y is a third group element, which is replaced by a fourth group element X. The aim of the theoretical study is to identify stable binary metal atom clusters and to test the robustness of the Zintl concept. DFT and RIMP2 methods are employed for this purpose. All low-energy isomers of [X10M](m+) show structures known from corresponding Zintl anions. A partial replacement of only six third group elements, however, may lead to different low-energy topologies. The cohesive energy of the clusters X10Ni (X = Si, Ge, Sn, Pb) is significantly higher than that of the bare X-10 species, binding energy of the Ni atom amounts to about 5 eV. [References: 21]
机译:拟元素概念应用于孤立的Zintl阴离子[Y10M](n-),其中M为Ni或Zn,Y为第三族元素,被第四族元素X取代。理论研究的目的是以确定稳定的二元金属原子团簇并测试Zintl概念的鲁棒性。 DFT和RIMP2方法用于此目的。 [X10M](m +)的所有低能异构体均显示相应Zintl阴离子已知的结构。但是,仅替换六个第三组元素可能会导致不同的低能耗拓扑。 X10Ni(X = Si,Ge,Sn,Pb)团簇的内聚能明显高于裸X-10物种的内聚能,Ni原子的结合能约为5 eV。 [参考:21]

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