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Core Modulation of 70‐Nuclei Core‐Shell Silver Nanoclusters
Author(s) -
Liu JiaWei,
Wang Zhi,
Chai YuMing,
Kurmoo Mohamedally,
Zhao QuanQin,
Wang XingPo,
Tung ChenHo,
Sun Di
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201900568
Subject(s) - nanoclusters , ion , shell (structure) , crystallography , chemistry , template , tetrahedron , materials science , nanotechnology , organic chemistry , composite material
The reaction of {(HNEt 3 ) 2 [Ag 10 ( t BuC 6 H 4 S) 12 ]} n , Ag 2 O, Na 2 MoO 4 , and m ‐methoxybenzoic acid (Hmbc) in CH 3 OH/CH 2 Cl 2 led to yellow crystals of [Ag 4 S 4 (MoO 4 ) 5 @Ag 66 ] (SD/Ag70b; SD=SunDi) only, while in the presence of DMF, additional dark‐red crystals of [Ag 10 @ (MoO 4 ) 7 @Ag 60 ] (SD/Ag70a) were obtained. SD/Ag70b consists of five MoO 4 2− ions wrapped by a shell of 66 Ag atoms, while SD/Ag70a contains a rare Ag 10 kernel consisting of five tetrahedra sharing faces and edges, surrounded by seven MoO 4 2− ions enclosed in a shell of 60 Ag atoms. The formation of the Ag 10 kernel originates from a reduction reaction during the self‐assembly process that involves DMF. This work provides the structural information of a unique Ag 10 kernel (five fused Ag 4 tetrahedra) and paves an avenue to trap elusive silver species with hierarchical multi‐shell silver nanocluster assemblies with the help of anion templates.