AI Article Synopsis
- The study focuses on understanding how atomically precise Ag-S semiconductor clusters are formed, as their fast nucleation in solution complicates research.
- Researchers utilized various analytical methods (UV, ESI-MS, NMR, SCXRD) to investigate the nucleation process of {AgS} clusters.
- They discovered that triphenylphosphorus sulfide (PPhS) slows down nucleation, and identified a precursor that combines with other elements to form {AgS}, offering new insights into synthesizing these specialized nanoclusters.
Article Abstract
The synthesis of atomically precise semiconductors Ag-S clusters is a subject of intense research interest, yet the formation mechanism of such nanoclusters remains obscure due to their uncontrolled fast nucleation process in solution. Herein, we have investigated the reaction mechanism responsible for {AgS} nucleation using UV, ESI-MS, NMR and SCXRD analyses. Triphenylphosphorus sulfide (PPhS) was surprisingly found to slow down the kinetic process of the cluster nucleation. Furthermore, a key precursor [Ag(PhPS)] was captured, which was attacked by Ag(CCBu) and traces of water to generate {AgS}. This mechanism provides valuable new insights into the synthesis of inorganic magic-size clusters.
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| http://dx.doi.org/10.1039/d2dt03418b | DOI Listing |
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