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Synthesis of Atomically Precise Silver Clusters by Using the Miscibility Principle

Author:
Ghosh, Atanu   Pradeep, Thalappil  


Journal:
European Journal of Inorganic Chemistry


Issue Date:
2014


Abstract(summary):

A new strategy to synthesize a diverse array of organic-soluble, atomically precise silver clusters has been developed. The technique is based on the miscibility principle of solvents and uses no phase-transfer agents; various clusters of masses 8.0, 13.4, 22.8, 29.2, and 34.4 kDa were synthesized by changing the reactant composition. We have also synthesized the well-known Au-25(SR)(18) cluster by the same method. Among the silver clusters formed, we have studied the new 13.4 kDa species, which has unique steplike features in its UV/Vis spectrum, in detail by mass spectrometry and other analytical techniques. The compound has been assigned as Ag-68(SR)(34), which is reported for the first time. By time-dependent studies, we have shown that the synthetic route follows the bottom-up approach. The material forms microcrystals. We hope that the proposed synthetic strategy will extend the area of atomically precise clusters.


Page:
5252-5252


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