Contribution of the Covalent Component of the Hydrogen-Bond Network to the Properties of Liquid Water

The Journal of Physical Chemistry. a
Yifei ShiRustam Z Khaliullin

Abstract

Many remarkable properties of liquid water originate from the ability of its molecules to form hydrogen bonds, each of which emerges as a combination of electrostatic, polarization, dispersion, and donor-acceptor or covalent interactions. In this work, ab initio molecular dynamics was tailored to isolate and switch off the covalent component of interactions between water molecules in simulations. Comparison of simulations with and without covalency shows that a small amount of intermolecular electron density transfer has a profound effect on the structure and dynamics of the hydrogen-bond network and thus on observable properties of room-temperature liquid water.

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Citations

Aug 10, 2021·Journal of Chemical Theory and Computation·Ziling Luo, Rustam Z Khaliullin
Apr 5, 2019·The Journal of Physical Chemistry Letters·Yonghwan YunYousung Jung

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