Adsorption of 5-halouracils on Au(111) (Articolo in rivista)

Type
Label
  • Adsorption of 5-halouracils on Au(111) (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.susc.2011.11.002 (literal)
Alternative label
  • Plekan, O.; Feyer, V.; Tsud, N.; Vondracek, M.; Chab, V.; Matolin, V.; Prince, K. C. (2012)
    Adsorption of 5-halouracils on Au(111)
    in Surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Plekan, O.; Feyer, V.; Tsud, N.; Vondracek, M.; Chab, V.; Matolin, V.; Prince, K. C. (literal)
Pagina inizio
  • 435 (literal)
Pagina fine
  • 443 (literal)
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  • 606 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
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  • 3-4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Sincrotrone Trieste; Charles University Prague; Czech Academy of Sciences; Consiglio Nazionale delle Ricerche (CNR) (literal)
Titolo
  • Adsorption of 5-halouracils on Au(111) (literal)
Abstract
  • The immobilization of 5-halouracils on Au(111) has been studied by soft X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. Multilayer and monolayer films of 5-chlorouracil were deposited on the Au(111) surface by evaporation in vacuum while films of 5-bromouracil were absorbed in two modes: from the gas phase under ultrahigh vacuum conditions and from solution. The photoemission spectra of C, N and O 1 s, Br 3d and Cl 2p as well as the absorption spectra at the N and O K-edges were measured for monolayers of 5-halouracil films and the nature of the bonding with the Au(111) surface has been determined. From the angular dependence of the NEXAFS spectra at the O and K-edges, we conclude that these 5-halouracils are lying nearly parallel to the Au(111) surface. Distinct chemical states and surface adsorption geometry of the 5-BrU molecules for monolayer coverage prepared in two different ways have been found. (C) 2011 Elsevier B.V. All rights reserved. (literal)
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