Total structural determination of [Au1Ag24(Dppm)3(SR)17]2+ comprising an open icosahedral Au1Ag12 core with six free valence electrons

Yangfeng Li; Manman Zhou; Shan Jin; Lin Xiong; Qianqin Yuan; Wenjun Du; Yong Pei; Shuxin Wang; Manzhou Zhu

doi:10.1039/C9CC00767A

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Total structural determination of [Au₁Ag₂₄(Dppm)₃(SR)₁₇]²⁺ comprising an open icosahedral Au₁Ag₁₂ core with six free valence electrons†

Yangfeng Li,‡^a Manman Zhou,‡^a Shan Jin,*^b Lin Xiong,^c Qianqin Yuan,^a Wenjun Du,^a Yong Pei,

*^c Shuxin Wang

^a and Manzhou Zhu

*^ab

Author affiliations

* Corresponding authors

^a Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui, P. R. China

^b Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, P. R. China
E-mail: jinshan@ahu.edu.cn, zmz@ahu.edu.cn

^c Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province, P. R. China
E-mail: ypnku78@gmail.com

Abstract

Herein, we report the first silver-rich nanocluster containing an open icosahedral Au₁Ag₁₂ core. This nanocluster is determined to be [Au₁Ag₂₄(Dppm)₃(SR)₁₇]²⁺ (where Dppm is short for bis-(diphenylphosphino)methane and SR is short for cyclohexyl mercaptan) by single-crystal X-ray diffraction and electrospray ionization mass spectrometry (ESI-MS). The Au₁Ag₂₄ consists of an open icosahedral Au₁Ag₁₂, which contains six free valence electrons surrounded by a big ring motif Ag₁₂(Dppm)₃(SR)₁₅ and two SR groups. Density Functional Theory (DFT) provided insight into the relationship between the structure and its performance.

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Article information

DOI: https://doi.org/10.1039/C9CC00767A
Article type: Communication
Submitted: 29 Jan 2019
Accepted: 05 May 2019
First published: 06 May 2019

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Chem. Commun., 2019,55, 6457-6460

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Total structural determination of [Au₁Ag₂₄(Dppm)₃(SR)₁₇]²⁺ comprising an open icosahedral Au₁Ag₁₂ core with six free valence electrons

Y. Li, M. Zhou, S. Jin, L. Xiong, Q. Yuan, W. Du, Y. Pei, S. Wang and M. Zhu, Chem. Commun., 2019, 55, 6457 DOI: 10.1039/C9CC00767A

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Chemical Communications