Oxidation reaction of [Ni(1,4,7-triazacyclononane)2]2+ by [Fe(o-phenanthroline)3]3+ in aqueous acidic solution at elevated pressures: determination of the activation and reaction volumes for the Ni(iii)/(ii) couple†
Abstract
The reaction volume corresponding to the self-exchange process of the [Ni(tacn)2]3+/2+ couple was determined in aqueous acidic solution. Theoretical equations on the basis of the Mean Spherical Approximation were proposed for the estimation of reaction volumes for Mn+/(n
− 1)+ couples in solution, and the calculated reaction volumes were compared with the experimentally estimated values. The