Understanding the decomposition process of the nanocluster at the atomic level

We report the decomposition of the Pt 1 Ag 24 (SPhCl 2 ) 18 nanocluster into a crown-like Pt 1 Ag 4 (SR) 8 (SR = 2,4-SPhCl 2 and 4-SPhBr) complex. UV-vis spectra and single crystal X-ray diffraction were used to track the structure-conversion process. Based on the total structure, the differences in...

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Published in:RSC advances 2024-04, Vol.14 (15), p.1574-1579
Main Authors: Jiang, Kefan, Ma, Along, Li, Yuansheng, Wang, Jiawei, Yin, Zhengmao, Wang, Shuxin
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Ma, Along
Li, Yuansheng
Wang, Jiawei
Yin, Zhengmao
Wang, Shuxin
description We report the decomposition of the Pt 1 Ag 24 (SPhCl 2 ) 18 nanocluster into a crown-like Pt 1 Ag 4 (SR) 8 (SR = 2,4-SPhCl 2 and 4-SPhBr) complex. UV-vis spectra and single crystal X-ray diffraction were used to track the structure-conversion process. Based on the total structure, the differences in ligand exchange rates at different sites and the effects on the stability were mapped out. This work can not only help us understand the ligand exchange behavior of the clusters, but also provide experimental support for the design of stable metal clusters. By investigating the decomposition of Pt 1 Ag 24 (SR) 18 , we synthesized two Pt 1 Ag 24 (SR) 20 nanoclusters ( NC-I and NC-II ) and a Pt 1 Ag 4 complex. Analysis showed that Pt 1 Ag 4 's ligands directly stem from type I and II ligands in NC-I .
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