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Department of Chemistry, North Bengal University, Darjeeling-784 480 Department of Chemistry, Kalyani University, Kalyani-741 286 Manuscript received 18 February 1984, revised 16 September 1984, accepted 29 April 1986 Studies on the equilibria for the reactions Fe bipy\(_3^{2+}\)+3H+ \(\rightleftharpoons\) Fe2+3Hbipy+ and Fe bipy2+\(\rightleftharpoons\)Fe2++3bipy have been determined spectrophotometrically in DMSO-water and formamide-water mixtures using the data previously reported for the reaction Hbipy+\(\rightleftharpoons\)H++bipy The results have been interpreted in terms of solvent basicity, changes in the solvent structures and ion-solvent interactions. The utility of such studies in determining the free energy of transfer of cations have been stressed. |
