Conformational effects on circular dichroism in the photoelectron angular distribution (Articolo in rivista)

Type
Label
  • Conformational effects on circular dichroism in the photoelectron angular distribution (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Di Tommaso, D; Stener, M; Fronzoni, G; Decleva, P (2006)
    Conformational effects on circular dichroism in the photoelectron angular distribution
    in ChemPhysChem (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Tommaso, D; Stener, M; Fronzoni, G; Decleva, P (literal)
Pagina inizio
  • 924 (literal)
Pagina fine
  • 934 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Trieste, Dipartimento Sci Chim, I-34127 Trieste, Italy; INSTM, Consorzio Interuniv Nazl Sci & Tecnol Mat, Unita Trieste, I-34127 Trieste, Italy; INFM, DEMOCRITOS, Natl Simulat Ctr, I-34127 Trieste, Italy (literal)
Titolo
  • Conformational effects on circular dichroism in the photoelectron angular distribution (literal)
Abstract
  • The B-spline density-functional method has been applied to the conformers of the (1R,2R)-1,2-dibromo-1,2-dichloro-1,2-difluoro-ethane molecule. The cross section, asymmetry, and dichroic parameters relative to core and valence orbitals, which do not change their nature along the conformational curve, have been systematically studied. While the cross section and the asymmetry parameter are weakly affected, the dichroic parameter appears to be rather sensitive to the particular conformer of the molecule, suggesting that this dynamical property could be a useful tool for conformational analysis. The computational method has also been applied to methyl rotation in methyloxirane. Unexpected and dramatic sensitivity of the dichroic-parameter profile to the methyl rotation, both in the core and valence states, has been found Boltzmann averaging over the conformers reproduces quite closely the profiles previously obtained for the minimum-energy conformation, which is in good agreement with the experimental results. (literal)
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