Capture of small clusters by ligand–solvent interaction

Clusters are considered to become increasingly significant for elaborating the nanocrystal’s formation mechanism. However, capturing the clusters with high chemical potential is challenging because of the lack of effective strategies. In this work, the key role of ligand–solvent interaction has been...

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Bibliographic Details
Published in:The Journal of chemical physics 2023-08, Vol.159 (6)
Main Authors: Zhang, Ming-Yu, Liu, An-An, Jiao, Luyang, Zhang, Shuhan, Jiang, Lin-Han, Kong, Xianglei, Pang, Dai-Wen
Format: Article
Language:English
Subjects:
Chemical potential
Clusters
Hydrogen bonding
Intermetallic compounds
Ligands
Nanocrystals
Physics
Silver compounds
Solvents
Synthesis
Tellurides
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Summary:Clusters are considered to become increasingly significant for elaborating the nanocrystal’s formation mechanism. However, capturing the clusters with high chemical potential is challenging because of the lack of effective strategies. In this work, the key role of ligand–solvent interaction has been revealed for the stabilization of clusters in silver telluride synthesis. The Flory interaction coefficient that comprehensively regards the temperature and dispersion, polarity, and hydrogen bonding of the solvent has been used to evaluate the ligand–solvent interaction and thus assist in the design of synthetic systems. Small silver telluride clusters have been successfully captured, and the composition of the smallest cluster is determined as Ag7Te8(SCy)2 (SCy represents the ligand). This work provides new insights into the design of cluster/nanocrystal synthesis systems and paves the way to revealing the mechanism of precursor–cluster–nanocrystal conversion.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0155373