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Excited‐State Dynamics of Isolated DNA Bases: A Case Study of Adenine |
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| Authors: | Christer Z. Bisgaard Dr. Helmut Satzger Dr. Susanne Ullrich Dr. Albert Stolow Dr. |
| Affiliation: | 1. Steacie Institute for Molecular Sciences, Ottawa, ON, K1A 0R6 (Canada), Fax: (+1)?613‐991‐3437;2. Current address: Leibniz Supercomputing Centre, Boltzmannstr. 1, 85748 Garching (Germany);3. Department of Physics and Astronomy, University of Georgia, Athens, GA, 30602‐2451 (USA), Fax: (+1)?706‐542‐2492 |
| Abstract: | We present a summary of recent advances in the understanding of the UV photophysics of the isolated DNA base adenine, emphasizing a discussion of the mechanisms behind the ultrafast relaxation following excitation to the ππ* band. Drawing on our femtosecond time‐resolved photoelectron spectroscopy experiments, we discuss differences in the ultrafast relaxation of adenine and 9‐methyladenine and consider the relative merits of the various proposed mechanisms. |
| Keywords: | biophysics conical intersections femtochemistry photochemistry time‐resolved spectroscopy |