title: Photoinduced long-lived charge transfer excited states in AT-DNA strands.
abstract: The IR spectrum of a charge transfer (CT) excited electronic state in DNA has been computed for the first time, enabling assignment of the long-lived component of the transient IR spectrum of a d(AT)9 single strand to an A → T CT state. Experimentally, the CT state lifetime is much shorter than in the double strand, and our calculations explain this result using Marcus Theory.
authors.affiliation: Istituto Biostrutture e Bioimmagini-Consiglio Nazionale delle Ricerche, Via Mezzocannone 16, I-80134 Napoli, Italy. robimp@unina.it.
authors.forename: Lara
authors.initials: L
authors.lastname: Martinez-Fernandez
authors.forename: Yuyuan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Kimberly
authors.initials: K
authors.lastname: de La Harpe
authors.forename: Ashley A
authors.initials: AA
authors.lastname: Beckstead
authors.forename: Bern
authors.initials: B
authors.lastname: Kohler
authors.forename: Roberto
authors.initials: R
authors.lastname: Improta
mesh_terms: D000225:Adenine; D000818:Animals; D004247:DNA; D004579:Electron Transport; D006801:Humans; D013941:Thymine
chemical_list: D004247:DNA; D000225:Adenine; D013941:Thymine