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A remarkable mixture of germanium with phosphorus and arsenic atoms making stable pentagonal hetero-prisms[M@Ge5E5](+), E = P, As and M = Fe, Ru, Os

机译:具有磷和砷原子的锗的卓越混合物,使五角形异质棱镜[M @ Ge5e5](+),E = P,As和M = Fe,Ru,Os

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摘要

A pentagonal hetero-prismatic structural motif was found for singly transition metal dopedM@Ge(5)E(5)(+)clusters, where the transition metal atom is located at the centre of a (5/5) Ge(5)E(5)prism in which Ge is mixed with either P or As atoms. Structural characterization indicates that each (5/5) Ge(5)E(5)prism is established by joining of two Ge(3)E(2)and Ge(2)E(3)strings in a prismatic fashion rather than two Ge(5)and E(5)strings. Each string results from a remarkable mixture of Ge and E atoms and contains only one E-E connection due to the fact that Ge-E bonds are much stronger than E-E connections. From the donor-acceptor perspective, the Ge(5)E(5)tube donates electrons to the M center, which behaves as an acceptor. NBO atomic charge and ELI_D analyses demonstrate such electrostatic interactions of the M dopant with a Ge(5)E(5)(+)tube which likely induce thermodynamic stability for the resultingM@Ge(5)E(5)(+)cluster. CMO analysis illustrates that the conventional 18 electron count is recovered in theM@Ge(5)E(5)(+)cations.
机译:发现五角形杂棱镜结构基质用于单过渡金属掺杂@ Ge(5)e(5)(+)簇,其中过渡金属原子位于A(5/5)Ge(5)E的中心(5)将GE与P或原子混合的棱镜。结构表征表明,通过以棱柱形时尚而不是两个,通过连接两个GE(3)e(2)和GE(3)字符串来建立每个(5/5)GE(5)e(5)棱镜。 GE(5)和E(5)字符串。每个字符串由GE和E原子的显着混合产生,并且由于GE-E键比E-E连接强大,仅包含一个E-E连接。从施主接受者的角度来看,Ge(5)e(5)管将电子向M中心捐赠给M中心,其表现为受体。 NBO原子电荷和ELI_D分析表明了M掺杂剂的这种静电相互作用与Ge(5)e(5)(+)管,其可能诱导得到的热力学稳定性@ ge(5)e(5)(+)簇。 CMO分析说明了传统的18电子计数在它们中恢复@ GE(5)E(5)(+)阳离子。

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  • 来源
    《RSC Advances》 |2020年第34期|共9页
  • 作者单位

    Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F B-3001 Leuven Belgium;

    Quy Nhon Univ Lab Computat Chem &

    Modelling Quy Nhon Vietnam;

    Inst Computat Sci &

    Technol ICST Ho Chi Minh City Vietnam;

    Ton Duc Thang Univ Computat Chem Res Grp Ho Chi Minh City Vietnam;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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