• Thermodynamics of the complexation reactions of UO22+, Be2+ and Cu2+ with methoxybenzoic acids

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      https://www.ias.ac.in/article/fulltext/jcsc/088/03/0149-0153

    • Keywords

       

      Stability constants; Gibbs-Helmholtz equation; Born equation

    • Abstract

       

      The stability constants and thermodynamic parameters of complexation reactions of$$UO_2 ^{2 + } $$, Be2+ and Cu2+ with some methoxybenzoic acids in 76% (v/v) dioxane water medium and μ = 0.1 M NaClO4 have been potentiometrically investigated. All the metal ions form 1: 1 complexes. The logK1 varies linearly with mole fraction of dioxane but nonlinearly with the reciprocal of dielectric constant in the case of UO22+ chelates. In all the complexes ΔG values follow the Basolo Pearson stability order: UO22+ > Be2+ > Cu2+.

    • Author Affiliations

       

      B D Mali1 2 L D Pethe1

      1. Department of Chemistry, Marathwada University, Aurangabad - 431 004
      2. Inorganic Chemistry Division, National Chemical Laboratory, Pune - 411 008
    • Dates

       
  • Journal of Chemical Sciences | News

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