Issue 6, 2023

The electric field changes the anomalous properties of the Mercedes Benz water model

Abstract

The influence of a homogeneous constant electric field on water properties was assessed. We used a simple two-dimensional statistical mechanical model called the Mercedes-Benz (MB) model of water in the study. The MB water molecules are two-dimensional disks with Gaussian arms that mimic the formation of hydrogen bonds. The model is modified with added charges for interaction with the electric field. The influence of the strength of the electric field on the water's properties was studied using Monte Carlo simulations. The structure and thermodynamics of the water were determined as a function of the strength of the electric field. We observed that the properties and phase transitions of the water in the low strength electric field does not change. In contrast, the high strength electric field shifts boiling and melting points as well as the position of the density maxima. After further increasing the strength of the electric field the density anomaly disappears.

Graphical abstract: The electric field changes the anomalous properties of the Mercedes Benz water model

Article information

Article type
Paper
Submitted
05 Dec 2022
Accepted
09 Jan 2023
First published
11 Jan 2023
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2023,25, 4987-4996

The electric field changes the anomalous properties of the Mercedes Benz water model

T. Urbic, Phys. Chem. Chem. Phys., 2023, 25, 4987 DOI: 10.1039/D2CP05670D

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