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Title: The temperature dependence of intermediate range oxygen-oxygen correlations in liquid water

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4961404· OSTI ID:1306686

We analyze the recent temperature dependent oxygen-oxygen pair-distribution functions from experimental high-precision x-ray diffraction data of bulk water by Skinner et al. [J. Chem. Phys. 141, 214507 (2014)] with particular focus on the intermediate range where small, but significant, correlations are found out to 17 Å. The second peak in the pair-distribution function at 4.5 Å is connected to tetrahedral coordination and was shown by Skinner et al. to change behavior with temperature below the temperature of minimum isothermal compressibility. Here we show that this is associated also with a peak growing at 11 Å which strongly indicates a collective character of fluctuations leading to the enhanced compressibility at lower temperatures. We note that the peak at ~13.2 Å exhibits a temperature dependence similar to that of the density with a maximum close to 277 K or 4 °C. We analyze simulations of the TIP4P/2005 water model in the same manner and find excellent agreement between simulations and experiment albeit with a temperature shift of ~20 K.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
European Research Council (ERC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; 667205; 2013-8823
OSTI ID:
1306686
Alternate ID(s):
OSTI ID: 1312725; OSTI ID: 1389307; OSTI ID: 1420633
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Vol. 145 Journal Issue: 8; ISSN 0021-9606
Publisher:
American Institute of PhysicsCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

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Cited By (7)

Coherent X-rays reveal the influence of cage effects on ultrafast water dynamics journal May 2018
High-temperature dynamic behavior in bulk liquid water: A molecular dynamics simulation study using the OPC and TIP4P-Ew potentials journal December 2017
Translational and rotational dynamics of high and low density TIP4P/2005 water journal June 2019
Intermediate range O–O correlations in supercooled water down to 235 K journal June 2019
Radial distribution functions of water: Models vs experiments journal July 2019
A proposal for the structure of high- and low-density fluctuations in liquid water journal July 2019
Seeing real-space dynamics of liquid water through inelastic x-ray scattering journal December 2017