• Metal complexes of thymidine — a study of binary and ternary systems with bivalent and trivalent metal ions in solution

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    • Keywords


      Metal complexes of thymidine; binary and ternary systems; bivalent and trivalent metal ions

    • Abstract


      The interaction of bivalent [Cu(II), Ni(II), Zn(II), Co(II), Mg(II), Ca(II)] and trivalent [La(III), Pr(III), Nd(III), Sm(III), Gd(III), Dy(III)] metal ions with thymidine both in binary and ternary systems have been investigated by potentiometric pH measurements at 35°C and 0·10M (KNO2) ionic strength. The secondary ligands used in this investigation were glycine, histidine, histamine,o-phenanthroline and α, α’-bipyridyl. The various stability constants pertaining to the above interactions were computed and compared. The influence of pH on the concentrations of several species present in aqueous solution, has been assessed. The effects of (i) charge on the metal ions, and (ii) the presence of a methyl group on the pyrimidine ring, on the stabilities of complexes have been assessed. A comparison with the corresponding constants of uridine has been made. Thymidine forms more stable complexes than uridine.

    • Author Affiliations


      P Rabindra Reddy1 C N Keerthi1 T K Adharani1

      1. Department of Chemistry, Osmania University, Hyderabad - 500007, India
    • Dates

  • Journal of Chemical Sciences | News

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