Electronic structure of genomic DNA: a photoemission and X-ray absorption study.
J Phys Chem B
; 114(29): 9645-52, 2010 Jul 29.
Article
em En
| MEDLINE
| ID: mdl-20608694
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.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
DNA
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article