Hydrogen bonding in liquid water probed by resonant Auger-electron spectroscopy
2007 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 127, no 9, 094501-094501-6 p.Article in journal (Refereed) Published
We have measured resonant and off-resonant Auger-electron spectra of liquid water. Continuumlike transitions near and above the O1s vertical ionization energy are identified by the characteristic normal Auger-electron spectra. On the contrary, well-resolved spectator shifts of the main Auger-electron peak are observed at the liquid-water O1s absorption main edge and near the absorption pre-edge. The shifts of 1.4 and 1.9 eV arise from the localized nature of the excitation. Excited-state localization/delocalization is also discussed for the analogous vacuum ultraviolet (VUV) transitions, and we point out the similarities between x-ray and VUV absorption spectra of liquid water.
Place, publisher, year, edition, pages
2007. Vol. 127, no 9, 094501-094501-6 p.
Auger electron spectra, excited states, hydrogen bonds, liquid structure, ultraviolet spectra, water, X-ray absorption spectra
IdentifiersURN: urn:nbn:se:uu:diva-16367DOI: 10.1063/1.2770457ISI: 000249323700018OAI: oai:DiVA.org:uu-16367DiVA: diva2:44138