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Alternating Array Stacking of Ag 26 Au and Ag 24 Au Nanoclusters
Author(s) -
He Lizhong,
Gan Zibao,
Xia Nan,
Liao Lingwen,
Wu Zhikun
Publication year - 2019
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.201900831
Subject(s) - nanoclusters , stacking , cationic polymerization , crystallography , ion , materials science , metal , counterion , chemistry , nanotechnology , polymer chemistry , metallurgy , organic chemistry
An assembly strategy for metal nanoclusters using electrostatic interactions with weak interactions, such as C−H⋅⋅⋅π and π⋅⋅⋅π interactions in which cationic [Ag 26 Au(2‐EBT) 18 (PPh 3 ) 6 ] + and anionic [Ag 24 Au(2‐EBT) 18 ] − nanoclusters gather and assemble in an unusual alternating array stacking structure is presented. [Ag 26 Au(2‐EBT) 18 (PPh 3 ) 6 ] + [Ag 24 Au(2‐EBT) 18 ] − is a new compound type, a double nanocluster ion compound (DNIC). A single nanocluster ion compound (SNIC) [PPh 4 ] + [Ag 24 Au(2‐EBT) 18 ] − was also synthesized, having a k‐vector‐differential crystallographic arrangement. [PPh 4 ] + [Ag 24 Au(2,4‐DMBT) 18 ] − adopts a different assembly mode from both [Ag 26 Au(2‐EBT) 18 (PPh 3 ) 6 ] + [Ag 24 Au(2‐EBT) 18 ] − and [PPh 4 ] + [Ag 24 Au(2‐EBT) 18 ] − . Thus, the striking packing differences of [Ag 26 Au(2‐EBT) 18 (PPh 3 ) 6 ] + [Ag 24 Au(2‐EBT) 18 ] − , [PPh 4 ] + [Ag 24 Au(2‐EBT) 18 ] − and the existing [PPh 4 ] + [Ag 24 Au(2,4‐DMBT) 18 ] − from each other indicate the notable influence of ligands and counterions on the self‐assembly of nanoclusters.