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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/103/03/0487-0497

    • Keywords

       

      Porphyrins; diazonium salts; photoinducted electron transfer; spectral sensitization

    • Abstract

       

      Meso-tetra-(p-diazoniumphenyl) porphyrin (TDSPP) can be photolyzed only under anaerobic conditions with a yield of 0.18 during simultaneous irradiation with He-Ne laser light (632.8 nm) and light of the 313 nm line of 0 mercury lamp.

      The excited singlet state of TDSPP is quenched by externalp-methoxybenzene diazoniumtetra fluoroborate (MeODS) with a rate constant of 9.7 × 109M−1s−1. TDSPP and MeODS interact in the ground state with an equilibrium constant of about 16M−1 and form a fluorescent but photochemically inactive.

    • Author Affiliations

       

      Jaroslaw Zieba1 Wojciech Pfloegel1

      1. Division of Photochemistry and Photographic Engineering, Institute of Organic and Physical Chemistry, Technical University of Wroclaw, Wybrzeze Wyspianskiego 27, Wroclaw - 50-370, Poland

    • Dates

       
      Published
      March 1991

  • Journal of Chemical Sciences | News

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