Quantitative study on the interaction of transition metal ions with allopurinol and 4-aminobutyric acid in aqueous solution

Mazahar Farooquia,d, D. M. Jan

Abstract

The stability constant values of ternary complexation by transition metal ions such as Co(II), Zn(II) with allopurinol and 4-aminobuytyric acid has been evaluated by potentiometry. The ionic strength was maintained by NaNO3 A computer based SCOG program is used to calculate stability constants. The trend in the stability constants varies for ternary complexes Co(II) > Zn (II) > Cu (II) > Ni(II).