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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/129/04/0463-0470

    • Keywords

       

      Chemoreceptor; fluoride; colorimetric detection; PET; DFT-D3.

    • Abstract

       

      A newly synthesized hydrazine-functionalized Schiff base chemoreceptor [N¹N³−bis(4-cyanobenzylidene) isophthalahydrazide], NBCBIH has been prepared and successfully utilized for selective detection of Fluoride ion. Herein, NH and C=N-like functional units have been incorporated which providebetter colorimetric response compared to systems where such kind of units are absent. On exposure to F⁻, NBCBIH turns from almost colorless to yellow. The recognition is well-supported by UV-Vis, fluorescence and ¹H-NMR in DMSO. The fluorescence quenching is well-explained by photoinduced electron transfer mechanism (PET). The limit of detection of F− with NBCBIH is 0.7 × 10⁻⁴M.

    • Author Affiliations

       

      ADDITI ROY CHOWDHURY1 2 PRIYABRATA BANERJEE1 2

      1. Surface Engineering & Tribology Group, CSIR-Central Mechanical Engineering Research Institute, Mahatma Gandhi Avenue, Durgapur 713 209, India
      2. Academy of Scientific and Innovative Research(AcSIR), CSIR-Central Mechanical Engineering Research Institute (CMERI) campus, Mahatma Gandhi Avenue, Durgapur 713 209, West Bengal, India

    • Dates

       
      Published
      5 April 2017
      Manuscript received
      10 August 2016
      Manuscript revised
      26 December 2016
      Accepted
      27 January 2017

    • Supplementary Material

       

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