PMID: 12786046Jun 6, 2003Paper

Electron attachment to uracil: effective destruction at subexcitation energies

Physical Review Letters
G HanelT D Märk

Abstract

We demonstrate that electrons at energies below the threshold for electronic excitation (<3 eV) effectively decompose gas phase uracil generating a mobile hydrogen radical and the corresponding closed shell uracil fragment anion (U-H)(-). The reaction is energetically driven by the large electron affinity of the (U-H) radical. This observation has significant consequences for the molecular picture of radiation damage, i.e., genotoxic effects or damage of living cells due to the secondary component of high energy radiation.

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Apr 6, 2006·Proceedings of the National Academy of Sciences of the United States of America·Xiaoguang BaoJerzy Leszczynski
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