• 1,3-dinitrobenzene containing Indole-based Schiff bases as chromogenic receptors for F¯ anions

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    • Keywords


      Fluoride; Schiff base; Hydrazone; Charge transfer; Anion recognition.

    • Abstract


      Two colorimetric indole-based Schiff base receptors containing electron-deficient 1,3-dinitrobenzenemotif, R1 and R2 were developed as a potential receptors for F¯ anion. Detailed UV-visible and 1H NMR studies revealed that the interactions of the receptor R2 with F¯ anions were driven by H-bondingfollowed by anion-induced deprotonation. The anion-receptor interactions produced distinct colorimetricchanges in solution, which was visible to the naked eye.

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    • Author Affiliations



      1. Department of Chemistry, Gauhati University, Guwahati, Assam 781014, India
      2. Department of Chemistry, Handique Girls’ College, Guwahati, Assam 781001, India
    • Dates

  • Journal of Chemical Sciences | News

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      Posted on July 25, 2019

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