Laser photolysis of cytosine, cytidine and dCMP in aqueous solution

✍ Scribed by Zhi-hua Zuo; Si-de Yao; Jian Luo; Wen-feng Wang; Jia-shan Zhang; Nian-yun Lin

• Book ID: 103994298
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 510 KB
• Volume: 15
• Category: Article
• ISSN: 1011-1344
• DOI: 10.1016/1011-1344(92)85125-e

✦ Synopsis

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.