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Kinetics of dissociation of tris-1,10-phenanthroline-iron(II) complex cation in aqueous acetic acid solutions

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Abstract

The reaction under study is first order in the complex ion over the entire composition range of the mixed solvent. A minimum amount of mineral acid is needed for completion of the reaction (formation of colorless products), but the rate is practically acid-independent. The influence of solvent composition and some common ions on the reaction rate have been examined. A reaction mechanism consistent with the rate behavior is proposed where water is shown as an active participant in the dissociation process. A plausible explanation for the retardation effect of HSO4 − as against the accelerating effect of Cl− under water-scarce conditions is provided.

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Authors and Affiliations

  1. Department of Chemistry, Nagarjuna University, 522510, Nagarjunanagar, A.P., India

    K. Sriramam, Ch. Ramakrishna & J. Sreelakshmi

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  1. K. Sriramam
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  2. Ch. Ramakrishna
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  3. J. Sreelakshmi
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Sriramam, K., Ramakrishna, C. & Sreelakshmi, J. Kinetics of dissociation of tris-1,10-phenanthroline-iron(II) complex cation in aqueous acetic acid solutions. React Kinet Catal Lett 61, 209–215 (1997). https://doi.org/10.1007/BF02477537

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  • DOI: https://doi.org/10.1007/BF02477537

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