Abstract
Abstract The anation kinetics of the title complex were investigated spectrophotometrically in 10% (v/v) ethanol–water mixtures and the following rate law has been proposed in the pH range 3.65–6.5. where k1 is the water dissociation rate constant of the substrate complex, k−1 is the aquation and k2 is the ligand capturing rate constant of the five-coordinate intermediate [Ru(bpy)2(H2O)]2+. The activation parameters have been calculated and compared with other substitution reactions. Considering all the results, a dissociative mechanism has been suggested.
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