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Electrolysis of V(IV) and free meso-tetraphenyl porphyrin in two immiscible liquids

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Abstract

The electrochemical decomposition of free and vanadyl tetraphenyl porphyrin in xylene solutions, and in the presence of water, using K2SO4 as electrolyte, was studied. Electrolysis of the two-phase system was carried out at constant current density and potential. It was observed that the electrochemical decomposition of the porphyrins, using a two-phase liquid system, is possible. An inexpensive organic solvent (xylene instead of THF, acetonitrile, methylene chloride etc.) can be very effectively used in such a system. The decomposition occurs through an oxidation process, with the subsequent formation of cationic and dicationic radicals, and a final breakdown of the macrocycle.

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Authors and Affiliations

  1. Laboratorio de Electroquímica, Centro de Equilibrios en Solución, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Apartado 47102, Caracas, Venezuela

    G.A. Jorge R & E. García

  2. Centro de Catálisis Petróleo y Petroquímica, Apartado 47102, Caracas, Venezuela

    C.E. Scott

Authors
  1. G.A. Jorge R
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  2. E. García
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  3. C.E. Scott
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Correspondence to G.A. Jorge R.

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Jorge R, G., García, E. & Scott, C. Electrolysis of V(IV) and free meso-tetraphenyl porphyrin in two immiscible liquids. Journal of Applied Electrochemistry 32, 569–572 (2002). https://doi.org/10.1023/A:1016594110625

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  • DOI: https://doi.org/10.1023/A:1016594110625

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