Simultaneous hetero-atom doping and foreign-thiolate exchange on the Au
Xiao Wei1, Xi Kang, Shuxin Wang
1Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China. ixing@ahu.edu.cn zmz@ahu.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|September 19, 2018
Summary
This study demonstrates simultaneous metal doping and ligand exchange on gold nanoclusters (Au25 NCs) to create functional alloy nanoclusters. This method allows precise atomic-level modification for tailored properties and enhanced applications.
Area of Science:
- Nanomaterials Science
- Inorganic Chemistry
- Materials Chemistry
Background:
- Precise control over nanocluster (NC) structure is crucial for tuning properties and applications.
- Metal-exchange and ligand-exchange are key methods for atomic-level modification of NCs.
Purpose of the Study:
- To develop a method for simultaneous hetero-atom doping and hetero-thiolate exchange on gold nanoclusters (Au25).
- To create functional alloy nanoclusters with tailored properties by modifying both the metallic core and surface ligands.
Main Methods:
- Simultaneous doping of Au25(SR)18 nanoclusters with Ag-SR' complexes.
- Monitoring the reactions using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) and UV-vis spectrometry.
- Utilizing functionalized silver complexes (Ag-SPhNH2, Ag-SPhCOOH) for doping.
Main Results:
- Successful simultaneous hetero-atom doping and hetero-thiolate exchange on the Au25 template.
- Demonstrated functionalization of capped ligands and alloying of the metallic kernel.
- Creation of alloy nanoclusters with potentially intriguing functions.
Conclusions:
- The developed method enables simultaneous modification of the metallic core and surface ligands of nanoclusters.
- This approach provides a pathway for preparing functional alloy nanoclusters with tunable properties.
- The findings contribute to the understanding and synthesis of advanced nanocluster materials.
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