Issue 44, 2018

Water phase transitions from the perspective of hydrogen-bond network analysis

Abstract

We analyze the water vapour–liquid and solid–liquid phase transitions from the perspective of hydrogen bond networks. Using molecular dynamics simulation data for the TIP4P/2005 and TIP4P/ice water models, we built hydrogen bond networks in the neighbourhood of the transitions. We studied the behaviour of some topological network properties: the average degree, clustering coefficient, and average path length. We found that these properties exhibit a discontinuity while approaching a phase transition region, similar to those that appear for some thermodynamic properties in the same region. This approach can be extended to characterize other water phase transitions. Besides, it can also be applied to study the phase transitions of other hydrogen-bonded substances or to other scenarios whose relevant “interaction” could be identified together with a “proper criterion” defined in an analogous way as in the case of hydrogen bonded systems.

Graphical abstract: Water phase transitions from the perspective of hydrogen-bond network analysis

Article information

Article type
Paper
Submitted
21 Aug. 2018
Accepted
12 Okt. 2018
First published
12 Okt. 2018

Phys. Chem. Chem. Phys., 2018,20, 28308-28318

Water phase transitions from the perspective of hydrogen-bond network analysis

B. V. Ramírez, R. M. Benito, J. Torres-Arenas and A. L. Benavides, Phys. Chem. Chem. Phys., 2018, 20, 28308 DOI: 10.1039/C8CP05318A

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