On Routes to Ultrafast Dissociation of Polyatomic Molecules (Articolo in rivista)

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Label
  • On Routes to Ultrafast Dissociation of Polyatomic Molecules (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jz4011288 (literal)
Alternative label
  • Oksana Travnikova,+ Victor Kimberg,+,? Roberto Flammini,? Xiao-Jing Liu,+ Minna Patanen,+ Christophe Nicolas,+ Svante Svensson,§ and Catalin Miron*,+ (2013)
    On Routes to Ultrafast Dissociation of Polyatomic Molecules
    in The journal of physical chemistry letters; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Oksana Travnikova,+ Victor Kimberg,+,? Roberto Flammini,? Xiao-Jing Liu,+ Minna Patanen,+ Christophe Nicolas,+ Svante Svensson,§ and Catalin Miron*,+ (literal)
Pagina inizio
  • 2361 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/jz4011288 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 4 (literal)
Rivista
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  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • +Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France ?IMIP-CNR Istituto di Metodologie Inorganiche e dei Plasmi, 00019 Monterotondo Scalo, Roma, Italy, and §Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden (literal)
Titolo
  • On Routes to Ultrafast Dissociation of Polyatomic Molecules (literal)
Abstract
  • Dissociation pathways for complex polyatomic molecules can sometimes be obscure due to the multitude of degrees of freedom involved. Here, we suggest the description of a dissociation mechanism implying multimode dynamics on the barrierless potential energy surface. The mechanism is elaborated from the X-ray spectroscopic analysis of the ultrafast nuclear motion in core-shell excited molecules. We infer that in large molecules, dissociation pathways are observed to deviate from the two-body dissociation coordinate due to the internal motion of light linkages, which alters dissociation rates and may yield heavy products on very short time scales. The mechanism is exemplified with the case of 1-bromo-2-chloroethane, where the rotation of the C2H4-moiety leads to the dissociation of C-Cl or C-Br bonds in Cl2p or Br3d core-excited states, whose lifetimes last only ~7 fs. (literal)
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