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Electronic Structure of Genomic DNA: A Photoemission and X-ray Absorption Study.

Författare:
  • Kurt Kummer
  • Denis V Vyalikh
  • Gianina Gavrila
  • Alexei Preobrajenski
  • Alfred Kick
  • Martin Bönsch
  • Michael Mertig
  • Serguei L Molodtsov
Publiceringsår: 2010
Språk: Engelska
Sidor: 9645-9652
Publikation/Tidskrift/Serie: Journal of physical chemistry. B
Volym: 114
Nummer: 29
Dokumenttyp: Artikel
Förlag: American Chemical Society

Sammanfattning

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.

Disputation

Nyckelord

  • Physics and Astronomy

Övrigt

Published
Yes
  • ISSN: 1520-5207

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