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    • Keywords


      Metal isonicotinate tetrahydrates; 4-pyridine carboxylates; crystal structures; diffuse reflectance UV-visible-NIR studies; applications in gravimetric analysis

    • Abstract


      Molecules in metal isonicotinate tetrahydrates, M(NC5H4-p-CO2)2.4H2O with M = Mn, Fe, Co, Ni, Cu, Zn, consisting of the hexacoordinate complexestrans-[M(NC5H4-p-CO2)(OH2)4], participate in exhaustive hydrogen-bond formation among themselves to lead to a robust 3D supramolecular network in the solid state. Solid-state diffuse reflectance UV-Vis-NIR spectra of the complexes have been assigned to ligand field and charge transfer transitions. Sharp weight loss due to dehydration, as shown by TGA of Cu(NC5H4-p-CO2)2.4H2O, suggests the suitability of this complex for the gravimetric estimation of copper.

    • Author Affiliations


      Birinchi Kumar Das1 Sanchay Jyoti Bora1 Monideepa Chakrabortty2 Laksheswar Kalita1 Rajesh Chakrabarty1 Ramakanta Barman1 3

      1. Department of Chemistry, Gauhati University, Guwahati - 781 014
      2. Department of Chemistry, Assam Engineering College, Guwahati - 781 013
      3. Department of Chemistry, Sherubtse College, Royal University of Bhutan, Kanglung, Trashigang, Bhutan
    • Dates

  • Journal of Chemical Sciences | News

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