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      https://www.ias.ac.in/article/fulltext/jcsc/129/04/0471-0481

    • Keywords

       

      Hydrazones; phosphine oxides; anion recognition; colorimetric sensing.

    • Abstract

       

      Phosphine substituted hydrazones with or without nitro substituents were synthesized and characterized by multinuclear NMR, FT-IR, UV-Vis spectroscopy and single crystal X-ray diffraction. The anion recognition properties of phosphine oxides {Ph₂P(O)C₆H₄CHNNHPh} (2) and {Ph₂P(O)C₆H₄CHNNHC₆H₃ (2,4-NO₂) ₂} (4) with anions (F⁻, Cl⁻, Br⁻, I⁻, CH₃COO⁻ and H₂PO⁻ ₄ ) were investigated. The selectivity towards these anions is attributed to the hydrogen bonding capability of the NH bond. Competitive titrations have shown that the binding ability of fluoride with 4 is not influenced by the presence of other anions.

    • Author Affiliations

       

      MARUTHAI KUMARAVEL1 JOEL T MAGUE2 MARAVANJI S BALAKRISHNA1

      1. Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
      2. Department of Chemistry, Tulane University, New Orleans, Lousiana 70118, USA.
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    • Supplementary Material

       
  • Journal of Chemical Sciences | News

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