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Au 57 Ag 53 (C≡CPh) 40 Br 12 : A Large Nanocluster with C 1 Symmetry
Author(s) -
Guan ZongJie,
Zeng JiuLian,
Yuan ShangFu,
Hu Feng,
Lin YuMei,
Wang QuanMing
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201801261
Subject(s) - nanoclusters , bimetallic strip , cluster (spacecraft) , crystallography , chemistry , metal , symmetry (geometry) , thermal stability , materials science , nanotechnology , geometry , mathematics , organic chemistry , computer science , programming language
The controlled synthesis and structure determination of a bimetallic nanocluster Au 57 Ag 53 (C≡CPh) 40 Br 12 (Au 57 Ag 53 ) is presented. The metal core has a four‐shell Au 2 M 3 @Au 34 @Ag 51 @Au 20 (M=1/3 Au+2/3 Ag) architecture. In contrast to the previously reported large nanoclusters that have highly symmetric kernel structures, the metal atoms in Au 57 Ag 53 are arranged in an irregular manner with C 1 symmetry. This cluster exhibits excellent thermal stability and is robust under oxidative or basic conditions. The silver precursors play a key role in dictating the structures of the nanoclusters, which suggests the importance of the counteranions used.