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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Unanticipated clustering-triggered emission in ammonium carboxylate salt structures
Hao Zhang1, Yunqian Ma2, Zixu Chen2
1School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, China.
None:
Fluorescence properties of nonconventional fluorophores, particularly those emitting under ultraviolet light without any external treatment, have garnered significant attention in recent years. In this study, we report the intrinsic visible emission of ammonium carboxylate salts (-NH₃+-OOC-) in both concentrated solutions and solid powders, which is attributed to a clustering-triggered emission (CTE) mechanism. The CTE mechanism is further supported by single-crystal structural analysis, revealing space electronic communication facilitated by intermolecular interactions. Additionally, the fluorescence of ammonium carboxylate salts exhibits high sensitivity to pH changes and selective fluorescence quenching in the presence of Fe3+ ions.
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