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Interaction of thiourea with hydroxopentaaquorhodium(III) ion in ethanol-water

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Summary

The rate of reaction between hydroxopentaaquorhodium-(III) and thiourea was studied spectrophotometrically in 30% v/v EtOH/H2O over the pH range 2.5–4.0 between 40° and 60°C. The rate was found to be independent of the incoming ligand concentration. The activation parameters (ΔH‡=113.8 kJ mol−1, ΔS‡=26.6 J deg mol−1) are consistent with a dissociative reaction involving a rate determining elimination of H2O from the hydroxopentaaquorhodium(III) cation followed by rapid thiourea ligation.

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Authors and Affiliations

  1. Department of Chemistry, University of Burdwan, 713 104, Burdwan, India

    Alak K. Ghosh & Gouri S. De

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  1. Alak K. Ghosh
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  2. Gouri S. De
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Ghosh, A.K., De, G.S. Interaction of thiourea with hydroxopentaaquorhodium(III) ion in ethanol-water. Transition Met. Chem. 17, 260–262 (1992). https://doi.org/10.1007/BF02910851

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  • DOI: https://doi.org/10.1007/BF02910851

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