Kinetics and Mechanism of the Oxidation of 1,10-Phenanthroline by Diperiodatonickelate(IV)in Aqueous Alkaline Medium |
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Authors: | Abdulazizkhan L Harihar Mohammedsaleem R Kembhavi and Sharanappa T Nandibewoor |
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Institution: | (1) P.G. Department of Studies in Chemistry, Karnatak University, Dharwad, 580003, India; |
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Abstract: | The title reaction was investigated in aqueous alkaline medium. A first order dependence on both diperiodatonickelate(IV)] and OH−] and an apparent fractional order in 1,10-Phenanthroline] was obtained. Addition of the reaction product has no effect on the reaction. The effects of dielectric constant, ionic strength, and temperature on the rate of the reaction were studied. A mechanism based on the experimental results is proposed, and the constants involved in the mechanism were evaluated. A good agreement between the observed and calculated rate constants at varying experimental conditions was obtained. |
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