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Study of the kinetics and activation parameters of reduction of Mn(III) to Mn(II) by SO3 2− ion in (MnSiW11O40H2)5- heteropoly ion

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Abstract

In order to gain an insight into the mechanism of reduction of Mn(III) heteropoly ions, and also to establish the conditions for use of some of these ions as oxidizing agent, following measurements have been made. The pseudo-first order rate constants, kobs, have been determined and specific rate constants, k, were calculated from the plots of kobs against SO3 2− concentrations. A plot of ln(k2/T) against inverse temperature gives enthalpy of activation as 10.67 kJ mol−1 and entropy of activation as −237.90 J K−1 mol−1. Effects of ionic strength and pH have also been studied over a limited range.

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References

  1. L.C.W. Baker, in: S. Kirschner (Ed.), Advances in Chemistry of the Coordination Compounds, MacMillan, New York, 1961.

    Google Scholar 

  2. T.A. Zardan, L.G. Hepler, Chem. Rev. 68 (1968) 737.

    Google Scholar 

  3. R.D. Kemmitt, Comprehensive Inorganic Chemistry, Vol. 3, Pergamon, New York, 1973, p. 813.

    Google Scholar 

  4. G. Davies, Coord. Chem. Rev. 4 (1969) 199.

    CAS  Google Scholar 

  5. C.F. Wells, G. Daveis, J. Chem. Soc., A. (1967) 1858.

  6. K.A. Kumar, P. Sivaswaroop, K.J. Rao, V.K.P. Rao, Transition Met. Chem. (London) 5 (1987) 441.

    Google Scholar 

  7. D.R. Eatan, W.R. Mc Clellan, J.F. Weither, Inorg. Chem. 7 (1968) 2040.

    Google Scholar 

  8. S.A. Malik, T.J.R. weakly, J. Chem. Soc. A. (1968) 2467.

  9. M.R. Hoffmann, J.O. Edwards, J. Phys. Chem. 79 (1975) 2096.

    CAS  Google Scholar 

  10. S.A. Malik, T.J.R. Weakly, C.M. Taurne, G.F. Tourne, J. Inorg. Nucl. Chem. 32 (1970) 3875.

    Google Scholar 

  11. X.Y. Zhang, C.J. O’Connor, G.B. Jameson, M.T. Pope, Inorg. Chem. 35 (1996) 30.

    CAS  Google Scholar 

  12. X.Y. Zhang, M.T. Pope, M.R. Chance, G.B. Jameson, Polyhedron 14 (1995) 1381.

    CAS  Google Scholar 

  13. I.E. Weinstock, R.H. Atalla, R.S. Reiner, M.A. Moen, K.E. Hammel, C.J. Houtman, C.L. Hill, M.K. Harrup, J. Mol. Catal. A: Chem. 116 (1997) 59.

    CAS  Google Scholar 

  14. I.A. Weinstock, Chem. Rev., 98,1 (1998) 119.

    Google Scholar 

  15. W. David, Carlyte, F. Otto Zeek, Inorg. Chem. 12 (1973) 2978.

    Google Scholar 

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Authors and Affiliations

  1. Department of Chemistry, University of Karachi, Karachi, Pakistan

    K. Ali & U. Ashiq

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  1. K. Ali
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  2. U. Ashiq
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Correspondence to U. Ashiq.

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Ali, K., Ashiq, U. Study of the kinetics and activation parameters of reduction of Mn(III) to Mn(II) by SO3 2− ion in (MnSiW11O40H2)5- heteropoly ion. JICS 1, 122–127 (2004). https://doi.org/10.1007/BF03246104

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  • DOI: https://doi.org/10.1007/BF03246104

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