Abstract
Photoinduced charge transfer in DNA occurs via two different hole-transfer mechanisms, diffusive hopping between sites with similar potential and tunneling over barriers with high potential. We discuss a simple kinetic scheme for diffusive motion and determine the stationary solution of the corresponding master equation. A continuous treatment leads to the diffusion equation. Hole tunneling appears over one or more bridge states and has to be described by a higher order superexchange mechanism. In general, both mechanisms are effective, dependent on the DNA sequence.
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© 2017 Springer-Verlag GmbH Germany
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Scherer, P.O.J., Fischer, S.F. (2017). Charge Transfer in DNA. In: Theoretical Molecular Biophysics. Biological and Medical Physics, Biomedical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-55671-9_26
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DOI: https://doi.org/10.1007/978-3-662-55671-9_26
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-55670-2
Online ISBN: 978-3-662-55671-9
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