Summary
The kinetics of replacement of aqua ligands of hexaaquorhodium(III) ion by thiocyanate ion in aqueous media have been studied spectrophotometrically. The reaction rate is pH-dependent in the pH 1–3 range and is independent of the incoming ligand concentration. Activation parameters, calculated by studying the reaction in the 45°–60°C range, suggest a primary H2O dissociation-controlled process and are comparable to the activation parameters of an H2O exchange process.
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Ghosh, A.K., De, G.S. Kinetics and mechanism of the reaction of thiocyanate ion with hexaaquo rhodium(III) ion. Transition Met. Chem. 17, 435–437 (1992). https://doi.org/10.1007/BF02910726
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DOI: https://doi.org/10.1007/BF02910726