Local structures of liquid water studied by x-ray emission spectroscopy
2004 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 69, no 2Article in journal (Refereed) Published
The O Kalpha x-ray emission spectra of water clusters with different sizes and conformations embedded in a continuum medium are simulated. The calculations have successfully explained the experimental spectra of water in both gas and liquid phases. It is shown that the x-ray emission spectra are very sensitive to the local hydrogen bonding structures. Strong electron sharing between different water molecules is observed and its possible connection to the covalency of hydrogen bonding is discussed. The experimentally observed strong excitation energy dependence of the spectra has been interpreted in terms of the polarization and angular dependence for the gas phase, and in terms of variations of local hydrogen bonding structures for the liquid phase.
Place, publisher, year, edition, pages
2004. Vol. 69, no 2
hydrogen-bond, ice, h2o, dynamics, spectrum, energy, dimer
IdentifiersURN: urn:nbn:se:kth:diva-23171DOI: 10.1103/PhysRevB.69.024201ISI: 000188947300033ScopusID: 2-s2.0-1442326242OAI: oai:DiVA.org:kth-23171DiVA: diva2:341869
QC 20100525 QC 201110312010-08-102010-08-102011-10-31Bibliographically approved