Temperature-dependent chloride-mediated access to atom-precise silver thiolate nanoclusters  

作　　者：Ling Yang Xin-Yao Wang Xiao-Yan Tang Meng-Yi Wang Chun-Yan Ni Hong Yu Ying-Lin Song Brendan F.Abrahams Jian-Ping Lang 

机构地区：[1]College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,215123,China [2]School of Materials Engineering,Changshu Institute of Technology,Changshu,215500,China [3]School of Physical Science and Technology,Soochow University,Suzhou,215006,China [4]School of Chemistry,University of Melbourne,Parkville,Victoria,3010,Australia

出　　处：《Science China Chemistry》2022年第6期1094-1099,共6页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (21871196, 21773163, 21531006);the Collaborative Innovation Center of Suzhou Nano Science and Technology;the Priority Academic Program Development of Jiangsu Higher Education Institutions;the Project of Scientific and Technologic Infrastructure of Suzhou (SZS201905)。

摘　　要：By using a unique temperature-dependent,chloride-mediated approach,two atom-precise silver nanoclusters[Cl@Ag_(14)(Tab)_(12)-(C_(5)H_(4)NCl)_(12)](PF_(6))_(13)(Cl@Ag_(14))and[Cl_(3)@Ag_(24)(Tab)_(20)(C_(5)H_(4)NCl)_(11)]Cl(PF_(6))_(20)(Cl_(3)@Ag_(24))(Tab=4-(trimethylammonio)benzenethiolate,C_(5)H_(4)NCl=3-chloropyridine)were obtained successfully.Notably,the number of chloride ions encapsulated inside the Ag-S shell could be regulated by the slow dissolution of almost insoluble KCl at various temperatures.The inclusion of additional core chloride ions results in the expansion of the surrounding Ag-S shell.This article provides a promising synthetic approach for controlling the number of Ag atoms that form a shell around the anionic core,in addition to offering a potential pathway for the introduction of other inorganic anions into silver clusters.More broadly,through the use of related ligands,the synthetic strategy offers scope for generating new families of silver thiolate clusters of varying size and composition.

关 键 词：TEMPERATURE-DEPENDENT chloride-mediated core expansion silver thiolate nanocluster transformation 

分 类 号：O641.4[理学—物理化学] TB383.1[理学—化学]