Laser photolysis of cytosine, cytidine and dCMP in aqueous solution.
Laser photolysis of cytosine and cytosine derivatives (cytidine and 2'-deoxycytidine-5'-monophosphate) using acetone as a sensitizer have been carried out in aqueous 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.
Zuo
Z
Z
Laboratory of Radiation Chemistry, Shanghai Institute of Nuclear Research, China.
Yao
S
S
Luo
J
J
Wang
W
W
Zhang
J
J
D003562:Cytidine / Q000528:radiation effects*; D003596:Cytosine / Q000528:radiation effects*; D003843:Deoxycytidine Monophosphate / Q000528:radiation effects*; D007700:Kinetics; D007834:Lasers; D010782:Photolysis; D012996:Solutions; D013053:Spectrophotometry; D013997:Time Factors
D012996:Solutions; D003843:Deoxycytidine Monophosphate; D003562:Cytidine; D003596:Cytosine