Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

Ionic-Charge Dependence of tie Intermolecular Coulombic Decay Time Scale for Aqueous Ions Probed by the Core-Hole Clock

  • Wandared Pokapanich
  • Nikolai V. Kryzhevoi
  • Niklas Ottosson
  • Svante Svensson
  • Lorenz S. Cederbaum
  • Gunnar Öhrwall
  • Olle Bjorneholm
Publiceringsår: 2011
Språk: Engelska
Sidor: 13430-13436
Publikation/Tidskrift/Serie: Journal of the American Chemical Society
Volym: 133
Nummer: 34
Dokumenttyp: Artikel i tidskrift
Förlag: The American Chemical Society


Auger electron spectroscopy combined with theoretical calculations has been applied to investigate the decay of the Ca 2p core hole of aqueous Ca2+. Beyond the localized two-hole final states on the calcium ion, originating from a normal Auger process, we have further identified the final states delocalized between the calcium ion and its water surroundings and produced by core level intermolecular Coulombic decay (ICD) processes. By applying the core-hole clock method, the time scale of the core level ICD was determined to be 33 +/- 1 fs for the 2p core hole of the aqueous Ca2+. The comparison of this time constant to those associated with the aqueous K+, Na+, Mg2+, and Al3+ ions reveals differences of 1 and up to 2 orders of magnitude. Such large variations in the characteristic time scales of the core level ICD processes is qualitatively explained by different internal decay mechanisms in different ions as well as by different ion solvent distances and interactions.


  • Physical Sciences
  • Natural Sciences


  • ISSN: 1520-5126

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen