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A Silver Nanocluster Containing Interstitial Sulfur and Unprecedented Chemical Bonds
Author(s) -
Liu Xu,
Chen Jishi,
Yuan Jinyun,
Li Yizhi,
Li Jin,
Zhou Shiming,
Yao Chuanhao,
Liao Lingwen,
Zhuang Shengli,
Zhao Yan,
Deng Haiteng,
Yang Jinlong,
Wu Zhikun
Publication year - 2018
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.201805594
Subject(s) - nanoclusters , sulfur , quantum chemical , lattice (music) , materials science , chemical physics , metal , void (composites) , interstitial defect , chemical bond , nanotechnology , crystallography , chemistry , molecule , physics , metallurgy , doping , organic chemistry , optoelectronics , acoustics , composite material
The emergence of thiolated metal nanoclusters provides opportunities to identify significant and unprecedented phenomena because they are at quantum sizes and can be characterized with X‐ray crystallography. Recently silver nanoclusters have received extensive interest owing to their merits, such as low‐cost and rich properties. Herein, a thiolated silver nanocluster [Ag 46 S 7 (SPhMe 2 ) 24 ]NO 3 (Ag 46 for short) with a face‐centered cubic (fcc) structure was successfully synthesized and structurally resolved by X‐ray analysis. Most importantly, interstitial sulfur was found in the lattice void of Ag 46 without lattice distortion or expansion, indicating that the classic theory of interstitial metal solid solutions might be not applicable at quantum size. Furthermore, unprecedented chemical bonds and unique structural features (such as asymmetrically coordinated μ 4 ‐S) were found in Ag 46 and might be related to the interstitial sulfur, which is supported by natural population analyses.