1.
J Am Chem Soc
; 131(14): 5038-9, 2009 Apr 15.
Artículo
en Inglés
| MEDLINE
| ID: mdl-19309140
RESUMEN
UV-induced formation of cylcobutane pyrimidine dimers (CPD) in all thymine DNA models have been studied by femtosecond IR spectroscopy. CPDs are shown to form within approximately 1 ps during the decay of the initially excited (1)pi pi * state. The quantum yields phi(D)(ps) determined after the (1)pi pi * decay equal the final yield phi(D)(cw). This gives evidence for a predominance of the singlet channel in CPD formation.