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.
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Zieba, J., Pfloegel, W. Simultaneous photolysis of directly linked porphyrin-diazonium salt molecule. Proc. Indian Acad. Sci. (Chem. Sci.) 103, 487–497 (1991). https://doi.org/10.1007/BF02842111
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DOI: https://doi.org/10.1007/BF02842111