Probing the OH Stretch in Different Local Environments in Liquid Water

We use resonant inelastic X-ray scattering (RIXS) to resolve vibrational losses corresponding to the OH stretch where the X-ray absorption process allows us to selectively probe different structural subensembles in liquid water. The results point to a unified interpretation of X-ray and vibrational...

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Bibliographic Details
Published in:The journal of physical chemistry letters 2017-11, Vol.8 (22), p.5487-5491
Main Authors: Harada, Y, Miyawaki, J, Niwa, H, Yamazoe, K, Pettersson, L. G. M, Nilsson, A
Format: Article
Language:English
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Summary:We use resonant inelastic X-ray scattering (RIXS) to resolve vibrational losses corresponding to the OH stretch where the X-ray absorption process allows us to selectively probe different structural subensembles in liquid water. The results point to a unified interpretation of X-ray and vibrational spectroscopic data in line with a picture of two classes of structural environments in the liquid at ambient conditions with predominantly close-packed high-density liquid (HDL) and occasional local fluctuations into strongly tetrahedral low-density liquid (LDL).
ISSN:1948-7185
1948-7185
DOI:10.1021/acs.jpclett.7b02060