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

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

Chem Commun (Camb). 2019 May 30;55(45):6457-6460. doi: 10.1039/c9cc00767a.

Authors

Yangfeng Li¹, Manman Zhou, Shan Jin, Lin Xiong, Qianqin Yuan, Wenjun Du, Yong Pei, Shuxin Wang, Manzhou Zhu

Affiliation

¹ 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 230601, P. R. China.

PMID: 31099351
DOI: 10.1039/c9cc00767a

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.