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Triplet-Triplet Energy Transfer in DNA: A Process that Occurs on the Nanosecond Timescale

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Triplet-triplet electronic energy transfer in polyA-polyT DNA sequences was studied by using semiempirical quantum-chemical methods coupled to classical molecular-dynamics simulations. Triplet excited states in DNA were found to be almost completely localized on single nucleobases; the characteristic time for their migration along the A-A and T-T stacks (see picture) was found to be 0.8 and 6.4 ns.

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CURUTCHET BARAT, Carles E. and VOITYUK, Alexander A. Triplet-Triplet Energy Transfer in DNA: A Process that Occurs on the Nanosecond Timescale. Angewandte Chemie-International Edition. 2011. Vol. 50, num. 8, pags. 1820-1822. ISSN 1433-7851. [consulted: 22 of June of 2026]. Available at: https://hdl.handle.net/2445/175477

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