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LASER PHOTOLYSIS STUDIES OF SUPEROXIDE ADDUCTS OF COBALT(II) AND ZINC(II) PORPHYRINS IN DIMETHYLFORMAMIDE
Authors:Mikio  Hoshino  Hiroshi  Seki  Minoru  Yamaji Yoshimasa  Hama
Institution:The Institute of Physical and Chemical Research, Wako, Saitama351–01, Japan;Science and Engineering Research Laboratory, Shinjuku-ku, Tokyo 169, Japan
Abstract:Abstract— Photochemistry of superoxide adducts of cobalt(II) and zinc(II) porphyrins has been studied by laser photolysis. It was found that the former in dimethlformamide photodissociates the superoxide anion radical, O2-, with the quantum yield of 0.5 ± 0.05 at the excitation wavelenths 355 and 532 nm, and the latter gives flurescence and the triple state without giving rise to the photodissociation of O2-
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