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SEARCH FOR SINGLET OXYGEN LUMINESCENCE IN THE DISPROPORTIONATION OF HO 2 /O 2
Author(s) -
Arudi Ravindra L.,
Bielski Be H. J.,
Allen Augustine O.
Publication year - 1984
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.1751-1097.1984.tb03912.x
Subject(s) - luminescence , disproportionation , singlet oxygen , singlet state , photochemistry , reagent , chemistry , impurity , aqueous solution , yield (engineering) , wavelength , triplet state , oxygen , materials science , physics , atomic physics , catalysis , excited state , organic chemistry , optoelectronics , molecule , metallurgy
— During the reaction HO 2 + HO 2 (or O 2 ‐ ) = H 2 O 2 + O 2 in aqueous solution, no luminescence in the region 620–720 nm, expected if the product O 2 were formed in a singlet state, could be detected. If any singlet O 2 is formed, its yield must be less than 10%. Faint luminescence, sometimes found at shorter wavelengths, was shown to arise from reaction of HO 2 with impurities in the reagents present.
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