3 years ago

Probing the OH Stretch in Different Local Environments in Liquid Water

Probing the OH Stretch in Different Local Environments in Liquid Water
J. Miyawaki, H. Niwa, Y. Harada, L. G. M. Pettersson, K. Yamazoe, A. Nilsson
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).

Publisher URL: http://dx.doi.org/10.1021/acs.jpclett.7b02060

DOI: 10.1021/acs.jpclett.7b02060

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