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STUDIES ON THYMINE AND URACIL TRIPLET EXCITED STATE IN ACETONITRILE AND WATER
Author(s) -
Salet C.,
Bensasson R.
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.tb06741.x
Subject(s) - thymine , triplet state , uracil , excited state , chemistry , photochemistry , flash photolysis , acetonitrile , molecule , physics , atomic physics , organic chemistry , kinetics , dna , biochemistry , quantum mechanics , reaction rate constant
— Thymine and uracil triplet‐triplet absorption spectra and triplet excited state lifetimes have been observed in acetonitrile and water by nanosecond laser flash spectroscopy. A study of triplet energy transfer from these pyrimidines to retino! has also allowed an estimation of the triplet extinction coefficient ε TT of thymine and uracil. These ε TT were then used to determine the triplet quantum yields Ø T of both pyrimidines in acetonitrile and water.