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A METHOD OF TREATING PHOTOCHEMICAL TRIPLET QUENCHING DATA
Author(s) -
Shetlar Martin D.
Publication year - 1969
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.1751-1097.1969.tb05705.x
Subject(s) - singlet state , quantum yield , triplet state , quenching (fluorescence) , photochemistry , yield (engineering) , chemistry , singlet oxygen , quantum , ground state , kinetic energy , fluorescence , atomic physics , excited state , thermodynamics , physics , molecule , quantum mechanics , organic chemistry , oxygen
— A modified Stern‐Volmer plot method is proposed for treatment of quantum yield data where both reactive photoexcited singlet and triplet states are present in solution. The method may be applied when the reactions occurring are zeroth order in ground state photochemical substrate and allows the separation of singlet and triplet state contributions to the total quantum yield and the calculation of kinetic lifetimes without going to very high quencher concentrations. The method is illustrated through its application to literature data on the Type II photoelelimination reaction of 2‐hexanone.