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OCCURRENCE OF THE SINGLET‐OXYGEN MECHANISM IN PHOTODYNAMIC OXIDATIONS OF GUANOSINE *
Author(s) -
Saito Isao,
Inoue Kenzo,
Matsuura Teruo
Publication year - 1975
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1975.tb06625.x
Subject(s) - singlet oxygen , photosensitizer , guanosine , photochemistry , chemistry , singlet state , oxygen , methanol , aqueous solution , organic chemistry , excited state , biochemistry , physics , nuclear physics
—Photosensitized oxidations of guanosine in aqueous methanol were investigated with a variety of sensitizers, and several experimental tests for the participation of singlet oxygen were examined. It has been shown that the dye‐sensitized photooxidation of guanosine proceeds by both singlet‐oxygen and Type I mechanisms, and that the efficiency of the singlet‐oxygen mechanism is strongly dependent on photosensitizer type.