Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 140, Issue 2, Pages 594-597Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b12136
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Funding
- Zhengzhou University
- Program for Science & Technology Innovation Talents in Universities of Henan Province [164100510005]
- University of Jinan
- National Natural Science Foundation of China [21671175, 21371153, 21271034]
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To realize the molecular design of new functional silver(I) clusters, a new synthetic approach has been proposed, by which the weakly coordinating ligands NO3- in a Ag-20 thiolate cluster precursor can be substituted by carboxylic ligands while keeping its inner core intact. By rational: design, novel atom-precise carboxylic or amino acid protected 20-core Ag(I)-thiolate clusters have been demonstrated for the first time. The fluorescence and electrochemical activity of the postmodified Ag-20 clusters can be modulated by alrestatin or ferrocenecarboxylic acid substitution. More strikingly, when chiral amino acids were used as postmodified ligands, CD-ctivity was observed for the Ag-20 clusters, unveiling an efficient way to obtain atom-precise chiral silver(I) clusters.
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