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Interaction of low-energy electrons with the pyrimidine bases and nucleosides of DNA

J. Chem. Phys. 127, 085105 (2007); doi:10.1063/1.2757617

Published 30 August 2007

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Carl Winstead and Vincent McKoy
A. A. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, USA

Sergio d'Almeida Sanchez
Instituto de Física “Gleb Wataghin,” Universidade Estadual de Campinas, 13083-970 Campinas, São Paulo, Brazil
We report computed cross sections for the elastic scattering of slow electrons by the pyrimidine bases of DNA, thymine and cytosine, and by the associated nucleosides, deoxythymidine and deoxycytidine. For the isolated bases, we carried out calculations both with and without the inclusion of polarization effects. For the nucleosides, we neglect polarization effects but estimate their influence on resonance positions by comparison with the results for the corresponding bases. Where possible, we compare our results with experiment and previous calculations. ©2007 American Institute of Physics
History: Received 29 May 2007; accepted 19 June 2007; published 30 August 2007
Permalink: http://link.aip.org/link/?JCPSA6/127/085105/1
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KEYWORDS and PACS

Keywords
PACS
  • 87.14.Gg
    DNA, RNA
  • 87.15.Kg
    Biomolecular interactions; membrane-protein interactions
  • 31.15.-p
    Calculations and mathematical techniques in atomic and molecular physics excluding electron correlation calculations
  • 34.80.Gs
    Molecular excitation and ionization by electron impact
  • 34.80.Bm
    Elastic scattering of electrons by atoms and molecules
  • YEAR: 2007

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ISSN:
0021-9606 (print)   1089-7690 (online)
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