New stable isomorphous Ag34 and Ag33Au nanoclusters with an open shell electronic structure

A novel atom-precise 3-electron homosilver nanocluster (Ag34) has been assembled for the first time by the oxidation of a thiol. When adding AuPPh3Cl in the reaction, we obtained an alloyed Ag33Au nanocluster, which shares a similar framework as that of Ag34, in which a doping Au atom replaced a cor...

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Bibliographic Details
Published in:Nanoscale 2018-12, Vol.10 (45), p.21013-21018
Main Authors: Xi, Xiao-Juan, Yang, Jin-Sen, Wang, Jia-Yin, Dong, Xi-Yan, Zang, Shuang-Quan
Format: Article
Language:English
Subjects:
Electronic structure
Nanoclusters
Oxidation
Online Access:Get full text
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Summary:A novel atom-precise 3-electron homosilver nanocluster (Ag34) has been assembled for the first time by the oxidation of a thiol. When adding AuPPh3Cl in the reaction, we obtained an alloyed Ag33Au nanocluster, which shares a similar framework as that of Ag34, in which a doping Au atom replaced a core silver atom. Notably, both Ag34 and alloyed Ag33Au demonstrated exceptional stability in solution and solid state over 3 months, which is difficult to explain by using the superatom model. Such Ag34 and Ag33Au complexes complement the nanoclusters with an open shell electronic structure and unveil a new approach to synthesize monodisperse nanoclusters under mild conditions.
ISSN:2040-3364
2040-3372
DOI:10.1039/c8nr07714b