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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/123/02/0175-0186

    • Keywords

       

      Anion receptor; supramolecular chemistry; colorimetric sensor; biological phosphate; urea/thiourea-based receptors.

    • Abstract

       

      This review covers few examples of anion complexation chemistry, with a special focus on urea/thiourea-based receptors and Zn(II)-dipicolyl amine-based receptors. This article specially focuses on structural aspects of the receptors and the anions for obtaining the desire specificity along with an efficient receptor-anion interaction. Two types of receptors have been described in this brief account; first one being the strong hydrogen bond donor urea/thiourea derivatives, which binds the anionic analytes through hydrogen bonded interactions; while, the second type of receptors are coordination complexes, where the coordination of the anion to the metal centre. In both the cases the anion binding modulate the energy gap between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) and thereby the spectroscopic response. Appropriate choice of the signalling unit may allow probing the anion binding phenomena through visual detection.

    • Author Affiliations

       

      Priyadip Das1 Prasenjit Mahato1 Amrita Ghosh1 Amal K Mandal1 Tanmay Banerjee1 Sukdeb Saha1 Amitava Das1

      1. Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar 364 002, Gujarat, India
    • Dates

       
  • Journal of Chemical Sciences | News

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