期刊
ACS NANO
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c06492
关键词
silver clusters; enantiomeric 2D self-assembly; chirality; thermal stability; catalysis
类别
资金
- National Natural Science Foundation of China [21871025, 21831001, 22001016]
- China Postdoctoral Science Foundation [2020TQ0038]
- Recruitment Program of Global Experts
- Beijing Institute of Technology (BIT) Excellent Young Scholars Research Fund
- Analysis and Testing Center of BIT
In this work, a pair of atomically precise enantiomers of silver clusters were synthesized, and their chirality was attributed to the asymmetric arrangement of surface ligands. These clusters could form two-dimensional assemblies, exhibiting excellent thermal stability and photocatalytic activity, providing possibilities for exploring catalysts based on fixed coinage clusters with attractive properties.
The facile syntheses of enantiomeric atomically precise silver clusters starting from achiral ligands remain a substantial challenge to explore. In this work, a pair of atomically precise enantiomers of R/S-[Ag17Cl((PrS)-Pr-i)(9)S(CH3COO)(5)H2O] (R/S-Ag-17, (PrS)-Pr-i = isopropanethiolate) clusters have been synthesized using a viable solvothermal approach. The chirality of the resulting enantiomeric R/S-Ag-17 clusters is attributed to the asymmetric arrangement of surface achiral ligands. Both R/S-Ag-17 enantiomers could form the two-dimensional (2D) assemblies via intercluster interactions of basic building blocks containing Ag16S8 moieties, (PrS)-Pr-i-Ag motifs, and S2- linkers. Such a small ligandinduced 2D assembly greatly contributes to the enhancement of thermal stability and photocatalytic activity of R/S-Ag-17 clusters, providing possibilities for exploring robust coinage cluster-based assembly with attractive catalytic properties.
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