Atomically Precise Bimetallic Au19Cu30 Nanocluster with an Icosidodecahedral Cu30 Shell and an Alkynyl–Cu Interface,Journal of the American Chemical Society

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Atomically Precise Bimetallic Au19Cu30 Nanocluster with an Icosidodecahedral Cu30 Shell and an Alkynyl–Cu Interface
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2017-07-10 , DOI: 10.1021/jacs.7b04622
Xian-Kai Wan _{1,

2} , Xiao-Ling Cheng ₂ , Qing Tang ₃ , Ying-Zi Han ₂ , Guoxiang Hu ₃ , De-en Jiang ₃ , Quan-Ming Wang _{1,

2}

Affiliation

Bimetallic nanoclusters Au19Cu30 with chemical composition of [Au19Cu30(C≡CR)22(Ph3P)6Cl2](NO3)3 (where RC≡C is from 3-ethynylthiophene (H3C4S-3-C≡CH) or ethynylbenzene (PhC≡CH)) has been synthesized. Single X-ray structural analysis reveals that Au19Cu30 has a multishelled core structure of Au@Au12@Cu30@Au6, comprising a centered icosahedral Au13 (Au@Au12) surrounded by an icosidodecahedral Cu30 shell and an outmost shell of a chairlike hexagonal Au6. The alkynyl carbon is bound to the hollow sites on the Au19Cu30 nanocluster surface, which is a novel interfacial binding mode in alkynyl-protected alloy nanoclusters. The Cu30 icosidodecahedron is unprecedented and Au19Cu30 represents the first alkynyl-protected Au-Cu alloy nanocluster.

中文翻译：

具有二十碳十面体Cu30壳和炔基-Cu界面的原子级精确双金属Au19Cu30纳米团簇

双金属纳米团簇 Au19Cu30，化学成分为 [Au19Cu30(C≡CR)22(Ph3P)6Cl2](NO3)3（其中 RC≡C 来自 3-乙炔基噻吩 (H3C4S-3-C≡CH) 或乙炔苯 (PhC≡CH) ) 已合成。单X射线结构分析表明，Au19Cu30具有Au@Au12@Cu30@Au6的多壳核结构，包括一个被二十面体Cu30壳包围的中心二十面体Au13（Au@Au12）和一个椅子状六边形Au6壳。炔基碳与 Au19Cu30 纳米团簇表面的空心位点结合，这是炔基保护的合金纳米团簇中的一种新型界面结合模式。Cu30 二十面体是前所未有的，Au19Cu30 代表第一个炔基保护的 Au-Cu 合金纳米团簇。

更新日期：2017-07-10

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