A bimetallic Ag15Cu12(S- c-C6H11)18(CH3COO)3 nanocluster featuring an irregular Ag12 kernel

Zhenzhen Lin; Ting Zhang; Cao Fang; Shan Jin; Chang Xu; Daqiao Hu; Manzhou Zhu

doi:10.1039/d2dt03423a

A bimetallic Ag₁₅Cu₁₂(S- c-C₆H₁₁)₁₈(CH₃COO)₃ nanocluster featuring an irregular Ag₁₂ kernel

Dalton Trans. 2023 Jan 24;52(4):971-976. doi: 10.1039/d2dt03423a.

Authors

Zhenzhen Lin^{1

2}, Ting Zhang^{1

2}, Cao Fang^{1

2}, Shan Jin^{2

3}, Chang Xu¹, Daqiao Hu^{1

2}, Manzhou Zhu^{1

2}

Affiliations

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 230601, P. R. China. hudaqiao@ahu.edu.cn.
² Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China.
³ Institutes of Physical Science and Information Technology, Anhui University, Hefei, P. R. China.

PMID: 36598410
DOI: 10.1039/d2dt03423a

Abstract

Here, we report the synthesis and atomic structure of a Ag₁₅Cu₁₂(SR)₁₈(CH₃COO)₃·(C₆H₁₄) nanocluster (Ag₁₅Cu₁₂ for short, SR denotes cyclohexanethiol), confirmed by single-crystal X-ray diffraction (SC-XRD), electrospray ionization mass spectrometry (ESI-MS), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA). X-ray crystallographic analysis revealed that Ag₁₅Cu₁₂ consisted of an irregular Ag₁₂ core, stabilized by the Ag₃Cu₁₂(SR)₁₈(CH₃COO)₃ shell. The shell consisted of two nearly planar Cu₃(SR)₆ moieties, three monomeric [-SR-Ag-SR-] units and three Cu₂(CH₃COO) staples. Furthermore, time-dependent density functional theory (TD-DFT) simulation was performed to interpret the optical absorption features of Ag₁₅Cu₁₂. Overall, this work will broaden and deepen the understanding of Ag-Cu alloy nanoclusters.

MeSH terms

Alloys*
Crystallography, X-Ray
Density Functional Theory
Photoelectron Spectroscopy
Spectrometry, Mass, Electrospray Ionization*

Substances

Alloys