• S M El-Medani

      Articles written in Journal of Chemical Sciences

    • Equilibrium studies of binary and ternary complexes of oxytetracycline and amino acid or DNA units

      S M El-Medani

      More Details Abstract Fulltext PDF

      The acid-dissociation constants of oxytetracycline (OTC) and the formation constants of the copper(II) complexes were determined att=25°C and μ=0.1 mol dm−3 (NaNO3) in dioxane-water mixtures. The mixed-ligand complexes of copper(II) with OTC as primary ligand and amino acids or DNA constituents as secondary ligands were investigated in 50% v/v dioxane-water mixture. The formation constants of the complexes formed in solutions and their concentration distributions as a function ofpH were evaluated. The relative stabilities of the ternary and corresponding binary complexes were also studied.

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