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Intramolecular soft modes and intermolecular interactions in liquid acetone

  • Y. -P. Sun
  • Franz Hennies (Dr.)
  • Annette Pietzsch
  • Brian Kennedy
  • T. Schmitt
  • V. N. Strocov
  • J. Andersson
  • M. Berglund
  • J. -E. Rubensson
  • K. Aidas
  • F. Gel'mukhanov
  • M. Odelius
  • A. Foehlisch
Publiceringsår: 2011
Språk: Engelska
Publikation/Tidskrift/Serie: Physical Review B
Volym: 84
Nummer: 13
Dokumenttyp: Artikel
Förlag: American Physical Society


Resonant inelastic x-ray scattering spectra excited at the O1s(-1)pi* resonance of liquid acetone are presented. Scattering to the electronic ground state shows a resolved vibrational progression where the dominant contribution is due to the C-O stretching mode, thus demonstrating a unique sensitivity of the method to the local potential energy surface in complex molecular systems. For scattering to electronically excited states, soft vibrational modes and, to a smaller extent, intermolecular interactions give a broadening, which blurs the vibrational fine structure. It is predicted that environmental broadening is dominant in aqueous acetone.



  • Physics and Astronomy


  • ISSN: 1098-0121

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