Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile

Molecular dynamic simulations of Li<sup>+</sup>, and Br<sup>−</sup> ions in acetonitrile were carried out. The simulated structural properties were compared to experimental data. The solvent potentials of Li<sup>+</sup>-Br<sup>−</sup>, Li<sup>+&l...

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Main Author: Reinhardt Pinzón
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Atoms
Subjects:
Online Access:https://www.mdpi.com/2218-2004/9/3/57
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author Reinhardt Pinzón
author_facet Reinhardt Pinzón
author_sort Reinhardt Pinzón
collection DOAJ
description Molecular dynamic simulations of Li<sup>+</sup>, and Br<sup>−</sup> ions in acetonitrile were carried out. The simulated structural properties were compared to experimental data. The solvent potentials of Li<sup>+</sup>-Br<sup>−</sup>, Li<sup>+</sup>-Li<sup>+</sup>, and Br<sup>−</sup>-Br<sup>−</sup> were evaluated using constrained molecular dynamics (CMD) simulations, to determine the solvent contribution to the total force acting on the solute and estimate the liquid arrangements according to the potential of mean force (PMF) values. The PMF of friction kernels and the passage across the Li<sup>+</sup>-Br<sup>−</sup> barrier was studied using the Grote–Hynes theory. The union-separation development happens in the polarization confining system.
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spelling doaj.art-e76ce588a6914ab7b50fbe517149c59b2023-11-22T12:01:30ZengMDPI AGAtoms2218-20042021-08-01935710.3390/atoms9030057Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in AcetonitrileReinhardt Pinzón0Centro de Investigaciones Hidráulicas e Hidrotécnicas (CIHH), Universidad Tecnológica de Panamá (UTP), Panamá City P.O. Box 0819-07289, PanamaMolecular dynamic simulations of Li<sup>+</sup>, and Br<sup>−</sup> ions in acetonitrile were carried out. The simulated structural properties were compared to experimental data. The solvent potentials of Li<sup>+</sup>-Br<sup>−</sup>, Li<sup>+</sup>-Li<sup>+</sup>, and Br<sup>−</sup>-Br<sup>−</sup> were evaluated using constrained molecular dynamics (CMD) simulations, to determine the solvent contribution to the total force acting on the solute and estimate the liquid arrangements according to the potential of mean force (PMF) values. The PMF of friction kernels and the passage across the Li<sup>+</sup>-Br<sup>−</sup> barrier was studied using the Grote–Hynes theory. The union-separation development happens in the polarization confining system.https://www.mdpi.com/2218-2004/9/3/57constrained molecular dynamics simulationmean force potentialsacetonitrileions pairassociation-dissociation process
spellingShingle Reinhardt Pinzón
Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
Atoms
constrained molecular dynamics simulation
mean force potentials
acetonitrile
ions pair
association-dissociation process
title Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
title_full Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
title_fullStr Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
title_full_unstemmed Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
title_short Constrained Molecular Dynamic Simulation of the Potential Mean Force of Lithium Bromide Ion Pairs in Acetonitrile
title_sort constrained molecular dynamic simulation of the potential mean force of lithium bromide ion pairs in acetonitrile
topic constrained molecular dynamics simulation
mean force potentials
acetonitrile
ions pair
association-dissociation process
url https://www.mdpi.com/2218-2004/9/3/57
work_keys_str_mv AT reinhardtpinzon constrainedmoleculardynamicsimulationofthepotentialmeanforceoflithiumbromideionpairsinacetonitrile