Abstract
Laser photolysis of cytosine and cytosine derivatives (cytidine and 2′-deoxycytidine-5′-monophosphate) using acetone as a sensitizer have been carried out in acqueous solution using a KrF laser. The absorption spectra of triplet states of cytosine and cytosine derivatives have been observed for the first time. From detailed kinetic analyses, the reaction mechanisms including triplet-triplet excitation transfer, and intramolecular excitation transfer within the exciplex arising from the interaction of triplet acetone with cytosine and cytosine derivatives, have been suggested. Accordingly, a series of kinetic parameters have also been obtained.
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More From: Journal of Photochemistry & Photobiology, B: Biology
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