Photofragmentation in selected tautomers of protonated adenine.
The photofragmentation by UV excitation of selectively prepared 1(+) and 3(+) tautomers of protonated adenine is studied after excitation at a 266 and 263 nm wavelengths with two different experimental set-ups located in Seoul and Orsay. While the production of 1(+) tautomers with an electrospray ion source is now well accepted, calculations were used to ascribe the preparation of 3(+) tautomers from cold adenine dimers. The fragmentation patterns are rather similar for both tautomers, suggesting similar mechanisms as a statistical fragmentation in the ground electronic state after internal conversion.
Cheong
Nu Ri
NR
Department of Chemistry, Kyung Hee University, Seoul 130-701, Korea.
Nam
Sang Hwan
SH
Park
Hye Sun
HS
Ryu
Seol
S
Song
Jae Kyu
JK
Park
Seung Min
SM
Pérot
Marie
M
Lucas
Bruno
B
Barat
Michel
M
Fayeton
Jacqueline A
JA
Jouvet
Christophe
C
D000225:Adenine / Q000737:chemistry*; D007700:Kinetics; D055668:Photochemical Processes; D011522:Protons; D013237:Stereoisomerism; D014466:Ultraviolet Rays
D011522:Protons; D000225:Adenine