Self assembly and chirality transfer in D-Alaninol on the Cu(100) surface (Articolo in rivista)

Type
Label
  • Self assembly and chirality transfer in D-Alaninol on the Cu(100) surface (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1140/epjd/e2012-30084-6 (literal)
Alternative label
  • P. Gori, G. Contini, F. Ronci, S. Colonna, N. Zema, S. Turchini, D. Catone, A. Cricenti, T. Prosperi, M. Aschi, A. Palma (2012)
    Self assembly and chirality transfer in D-Alaninol on the Cu(100) surface
    in The European physical journal. D, Atomic, molecular and optical physics (Print); Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P. Gori, G. Contini, F. Ronci, S. Colonna, N. Zema, S. Turchini, D. Catone, A. Cricenti, T. Prosperi, M. Aschi, A. Palma (literal)
Pagina inizio
  • 136 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 66 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, Ist Struttura Mat, I-00133 Rome, Italy Univ Roma Tor Vergata, Ctr Interdipartimentale Nanosci & Nanotecnol & St, I-00133 Rome, Italy Univ Aquila, Dipartimento Chim Ingn Chim & Mat, Coppito, AQ, Italy CNR, Ist Studio Mat Nanostrutturati, I-00015 Monterotondo S, RM, Italy (literal)
Titolo
  • Self assembly and chirality transfer in D-Alaninol on the Cu(100) surface (literal)
Abstract
  • Chirality expression modifications occurring for a simple chiral amino-alcohol, D-Alaninol, adsorbed on Cu(100), when passing from low to high molecular coverage, are studied by means of scanning tunneling microscopy (STM) and theoretical modeling. At low coverage, D-Alaninol molecules organize in tetramers that are aligned to Cu(100) unit vectors whereas, increasing the molecular amount on the surface, the interplay of supramolecularity and chirality induces a rotation of the tetramers of 14 degrees with respect to the substrate lattice vectors. This behaviour is analyzed by means of a theoretical approach that combines classical molecular dynamics (MD) and density functional theory (DFT). The force field adopted in MD calculations is parametrized by fitting it to results obtained at DFT level on a single adsorbed alaninol molecule on the Cu(100) surface. The configurations of isolated and surrounded tetramers most sampled by MD are extracted by Principal Component Analysis. Further DFT relaxation with semiempirical dispersion correction (DFT-D) and considering also the possible dehydrogenation of both functional groups of alaninol, give rise to a few structures that are discussed in terms of their energetics and by comparing the resulting simulated STM images with the experimental ones. (literal)
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