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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Structure and bonding in coinage metal halide clusters M _nX _n, M = Cu, Ag, Au; X = Br, I; N = 1-6
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Structure and bonding in coinage metal halide clusters M _nX _n, M = Cu, Ag, Au; X = Br, I; N = 1-6

机译:造币金属卤化物簇M _nX _n的结构和键合,M = Cu,Ag,Au; X = Br,I; N = 1-6

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摘要

Ab initio calculations in the framework of density functional theory (DFT) were performed to study the lowest-energy isomers of noble metal halide clusters M _nBr _n and M _nI _n, for M = Cu, Ag, or Au and n = 1-6. For all species, the most stable structures were found to be cyclic arrangements. Calculated bond lengths and infrared frequencies were compared with the available experimental data. The nature of the ionocovalent bonding was characterized. The stability and fragmentation were also investigated. The present work confirms previous observations on the particular stability of the trimer.
机译:在密度泛函理论(DFT)的框架内进行了从头算计算,以研究贵金属卤化物簇M _nBr _n和M _nI _n的最低能量异构体,其中M = Cu,Ag或Au且n = 1-6 。对于所有物种,发现最稳定的结构是循环排列。将计算出的键长和红外频率与可用的实验数据进行比较。表征了离子共价键的性质。还研究了稳定性和片段化。本工作证实了对三聚体特殊稳定性的先前观察。

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