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Synthesizing Photoluminescent Au 28 (SCH 2 Ph‐ t Bu) 22 Nanoclusters with Structural Features by Using a Combined Method
Author(s) -
Dong Jingwu,
Gan Zibao,
Gu Wanmiao,
You Qing,
Zhao Yan,
Zha Jun,
Li Jin,
Deng Haiteng,
Yan Nan,
Wu Zhikun
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.202105530
Subject(s) - nanoclusters , photoluminescence , crystallography , kernel (algebra) , random hexamer , materials science , ligand (biochemistry) , quantum yield , nanotechnology , chemistry , physics , combinatorics , mathematics , fluorescence , optoelectronics , biochemistry , receptor , quantum mechanics
We present a method for atomically precise nanocluster synthesis. As an illustration, we introduced the reducing‐ligand induction combined method and synthesized a novel nanocluster, which was determined to be Au 28 (SCH 2 Ph‐ t Bu) 22 with the same number of gold atoms as existing Au 28 (SR) 20 nanoclusters but different ligands (hetero‐composition‐homo‐size). Compared with the latter, the former has distinct properties and structures. In particular, a novel kernel evolution pattern is reported, i.e., the quasi‐linear growth of Au 4 ‐tetrahedron by sharing one vertex and structural features, including a tritetrahedron kernel with two bridging thiolates and two Au 6 (SCH 2 Ph‐ t Bu) 6 hexamer chair‐like rings on the kernel surface were also first reported, which endow Au 28 (SCH 2 Ph‐ t Bu) 22 with the best photoluminescence quantum yield among hydrophobic thiolated gold nanoclusters so far, probably due to the enhanced charge transfer from the bi‐ring to the kernel via Au−Au bonds.