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"Thymine Dimerization in DNA Model Systems: Cyclobutane Photolesion Is Predominantly Formed via the Singlet Channel" Wolfgang J. Schreier, Julia Kubon, Nadja Regner, Karin Haiser, Tobias E. Schrader, Wolfgang Zinth, Pascale Clivio, Peter GilchJ. Am. Chem. Soc. 131 (2009) 5038 Abstract: 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 1 ps during the decay of the initially excited 1ππ* state. The quantum yields φDps determined after the 1ππ* decay equal the final yield φDcw. This gives evidence for a predominance of the singlet channel in CPD formation. BMO authors (in alphabetic order): Peter Gilch Karin Haiser Julia Kubon Nadja Regner Tobias Schrader Wolfgang Schreier Wolfgang Zinth  WWW-Version |