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Total Structure of Bimetallic Core–Shell [Au 42 Cd 40 (SR) 52 ] 2− Nanocluster and Its Implications
Author(s) -
Tang Li,
Ma Along,
Zhang Cheng,
Liu Xuguang,
Jin Rongchao,
Wang Shuxin
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202106804
Subject(s) - bimetallic strip , nanoclusters , valence (chemistry) , crystallography , catalysis , chemistry , mass spectrometry , crystal structure , materials science , nanotechnology , organic chemistry , chromatography
Bimetallic core–shell nanostructures hold great promise in elucidating the bimetallic synergism. However, it remains a challenge to construct atomically precise core–shell with high‐valence active metals on the gold surface. In this work, we report the total structure of a [Au 42 Cd 40 (SR) 52 ] 2− core–shell nanocluster and multiple implications. Single crystal X‐ray diffraction (SCXRD) reveals that the structure possesses a two‐shelled Au 6 @Au 36 core and a closed cadmium shell of Cd 40 , and the core–shell structure is then protected by 52 thiolate (‐SR) ligands. The composition of the nanocluster is further confirmed by electrospray ionization mass spectrometry (ESI‐MS). A catalytic test for styrene oxidation and a comparison with relevant nanoclusters reveal the surface effect on the catalytic activity and selectivity.