Theoretical and Experimental Chemistry

, Volume 5, Issue 1, pp 63–68 | Cite as

A study of the photoreduction of Zn-tetraphenylporphin in solution

  • Yu. M. Stolovitskii
  • A. N. Sidorov
  • V. B. Evstigneev
Article
  • 17 Downloads

Abstract

This paper gives the results of a study of the photoreduction of Zn-tetraphenylporphin (Zn- TPP) in pyridine and ethereal solutions. The study was carried out by photoconductivity, photopotential, and spectrophotometric measurements. It has been shown that the yellow photoreduced form of Zn- TPP in pyridine solutions containing hydrazine is formed as a result of the primary transfer of an electron on illumination and the subsequent transfer of a proton. The illumination of ethereal and frozen (−78‡ C) pyridine solutions of Zn- TPP in the absence of specially introduced donor additives leads to an increase in electrical conductivity. It is suggested that this is due to intermolecular electron transfer between the pigment and the solvent on illumination.

Keywords

Electrical Conductivity Pyridine Electron Transfer Hydrazine Donor Additive 

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Copyright information

© Consultants Bureau 1972

Authors and Affiliations

  • Yu. M. Stolovitskii
    • 1
    • 2
  • A. N. Sidorov
    • 1
    • 2
  • V. B. Evstigneev
    • 1
    • 2
  1. 1.Institute of PhotosynthesisAS USSRUSSR
  2. 2.Bakh Institute of BiochemistryAS USSRMoscow

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