- Conference date: 15-19 October 2006
- Location: Meudon (France)
Low energy electrons effectively decompose thymine via dissociative electron attachment inducing H loss below 3 eV and H− loss above 5 eV. Experiments with partially deuterated or methylated thymine show that the site of dehydrogenation can be precisely controlled by the incident electron energy. Such bond and site selectivity also remains in more complex environments when thymine is a moiety of thymidine (base+sugar unit) and of a thymine cluster embedded in a superfluid helium droplet. Implications for the interpretation of strand breaks in plasmid DNA induced by low energy electrons are discussed.
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