Chloride-Promoted Formation of a Bimetallic Nanocluster Au80Ag30and the Total Structure Determination,Journal of the American Chemical Society

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Chloride-Promoted Formation of a Bimetallic Nanocluster Au80Ag30and the Total Structure Determination
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2016-06-15 , DOI: 10.1021/jacs.6b04471
Jiu-Lian Zeng ₁ , Zong-Jie Guan ₁ , Yang Du ₁ , Zi-Ang Nan ₁ , Yu-Mei Lin ₁ , Quan-Ming Wang _{1,

2}

Affiliation

We report the total structure determination of a large bimetallic nanocluster with an overall composition of [Au80Ag30(C≡CPh)42Cl9]Cl. It is the largest structurally characterized bimetallic coinage nanocluster so far. The 110 metal atoms are distributed in a concentric four-shell Russian doll arrangement, Au6@Au35@Ag30Au18@Au21. There are 42 PhC≡C- ligands and 9 μ2-chloride ligands clamping on the cluster surface. The chloride is proven to be critical for the formation of this giant cluster, as the control experiment in the absence of halide gives only smaller species. This work demonstrates that the halide can play a key role in the formation of a large metal nanocluster, and the halide effect should be considered in the design and synthesis of metal nanoclusters.

中文翻译：

氯化物促进双金属纳米团簇 Au80Ag30 的形成和总结构测定

我们报告了总体组成为 [Au80Ag30(C≡CPh)42Cl9]Cl 的大型双金属纳米团簇的总结构测定。它是迄今为止最大的结构特征双金属铸币纳米团簇。110个金属原子呈同心圆四壳俄罗斯娃娃排列，Au6@Au35@Ag30Au18@Au21。有 42 个 PhC≡C-配体和 9 μ2-氯化物配体夹在簇表面。氯化物被证明是形成这个巨大星团的关键，因为在没有卤化物的情况下，对照实验只给出了较小的物种。该工作表明卤化物在形成大的金属纳米团簇中起关键作用，在金属纳米团簇的设计和合成中应考虑卤化物效应。

更新日期：2016-06-15

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