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Interparticle Reactions between Silver Nanoclusters Leading to Product Cocrystals by Selective Cocrystallization
Wakeel Ahmed Dar, Mohammad Bodiuzzaman, Debasmita Ghosh, Ganesan Paramasivam, Esma Khatun, Korath Shivan Sugi,
Published in American Chemical Society
2019
PMID: 31675211
Volume: 13
   
Issue: 11
Pages: 13365 - 13373
Abstract
We present an example of an interparticle reaction between atomically precise nanoclusters (NCs) of the same metal, resulting in entirely different clusters. In detail, the clusters [Ag12(TBT)8(TFA)5(CH3CN)]+ (TBT = tert-butylthiolate, TFA = trifluoroacetate, CH3CN = acetonitrile) and [Ag18(TPP)10H16]2+ (TPP = triphenylphosphine) abbreviated as Ag12 and Ag18, respectively, react leading to [Ag16(TBT)8(TFA)7(CH3CN)3Cl]+ and [Ag17(TBT)8(TFA)7(CH3CN)3Cl]+, abbreviated as Ag16 and Ag17, respectively. The two product NCs crystallize together as both possess the same metal chalcogenolate shell, composed of Ag16S8, making them indistinguishable. The occupancies of Ag16 and Ag17 are 66.66 and 33.33%, respectively, in a single crystal. Electrospray ionization mass spectrometry (ESI MS) of the reaction product and a dissolved crystal show the population of Ag16 and Ag17 NCs to be in a 1:1 and 2:1 ratio, respectively. This suggests selective crystallization in the cocrystal. Time-dependent ESI MS was employed to understand the formation of product clusters by monitoring the reaction intermediates formed in the course of the reaction. We present an unprecedented growth mechanism for the formation of silver NCs mediated by silver thiolate intermediates. © 2019 American Chemical Society.
About the journal
JournalData powered by TypesetACS Nano
PublisherData powered by TypesetAmerican Chemical Society
ISSN19360851
Open AccessNo
Concepts (16)
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    Electrodeposition
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    Electrospray ionization
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    Mass spectrometry
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    Nanoclusters
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    Reaction intermediates
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    Silver
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    Single crystals
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    AG16 AND AG17
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    Co-crystals
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    Electrospray ionization mass spectrometry
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    HOMOMETALLIC CLUSTERS
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    INTER CLUSTERS
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    Selective crystallization
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    SILVER NANOCLUSTERS
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    Triphenyl phosphines
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    Silver compounds