title: Electronic structure of genomic DNA: a photoemission and X-ray absorption study.
abstract: The electronic structure of genomic DNA has been comprehensively characterized by synchrotron-based X-ray absorption and X-ray photoelectron spectroscopy. Both unoccupied and occupied states close to the Fermi level have been unveiled and attributed to particular sites within the DNA structure. A semiconductor-like electronic structure with a band gap of approximately 2.6 eV has been found at which the pi and pi* orbitals of the nucleobase stack make major contributions to the highest occupied and lowest unoccupied molecular orbitals, respectively, in agreement with previous theoretical predictions.
authors.affiliation: Institut für Festkörperphysik, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Kurt
authors.initials: K
authors.lastname: Kummer
authors.forename: Denis V
authors.initials: DV
authors.lastname: Vyalikh
authors.forename: Gianina
authors.initials: G
authors.lastname: Gavrila
authors.forename: Alexei B
authors.initials: AB
authors.lastname: Preobrajenski
authors.forename: Alfred
authors.initials: A
authors.lastname: Kick
authors.forename: Martin
authors.initials: M
authors.lastname: Bönsch
authors.forename: Michael
authors.initials: M
authors.lastname: Mertig
authors.forename: Serguei L
authors.initials: SL
authors.lastname: Molodtsov
mesh_terms: D004247:DNA / Q000737:chemistry*; D016678:Genome; D056951:Photoelectron Spectroscopy; D011789:Quantum Theory
chemical_list: D004247:DNA