Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids

[Image: see text] In this work, we show how the structure and intermolecular interactions affect the dynamic heterogeneity of aprotic ionic liquids. Using calorimetric data for 30 ionic samples, we examine the influence of the strength of van der Waals and Coulombic interactions on dynamic heterogen...

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Autores principales: Musiał, Małgorzata, Cheng, Shinian, Wojnarowska, Zaneta, Paluch, Marian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8154596/
https://www.ncbi.nlm.nih.gov/pubmed/33857379
http://dx.doi.org/10.1021/acs.jpcb.1c00653
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author Musiał, Małgorzata
Cheng, Shinian
Wojnarowska, Zaneta
Paluch, Marian
author_facet Musiał, Małgorzata
Cheng, Shinian
Wojnarowska, Zaneta
Paluch, Marian
author_sort Musiał, Małgorzata
collection PubMed
description [Image: see text] In this work, we show how the structure and intermolecular interactions affect the dynamic heterogeneity of aprotic ionic liquids. Using calorimetric data for 30 ionic samples, we examine the influence of the strength of van der Waals and Coulombic interactions on dynamic heterogeneity. We show that the dynamic length scale of spatially heterogeneous dynamics decreases significantly with decreasing intermolecular distances. Additionally, we assume that the magnitude of the number of dynamically correlated molecules at the liquid–glass transition temperature can be treated as an indicator for a dynamical crossover.
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spelling pubmed-81545962021-05-27 Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids Musiał, Małgorzata Cheng, Shinian Wojnarowska, Zaneta Paluch, Marian J Phys Chem B [Image: see text] In this work, we show how the structure and intermolecular interactions affect the dynamic heterogeneity of aprotic ionic liquids. Using calorimetric data for 30 ionic samples, we examine the influence of the strength of van der Waals and Coulombic interactions on dynamic heterogeneity. We show that the dynamic length scale of spatially heterogeneous dynamics decreases significantly with decreasing intermolecular distances. Additionally, we assume that the magnitude of the number of dynamically correlated molecules at the liquid–glass transition temperature can be treated as an indicator for a dynamical crossover. American Chemical Society 2021-04-15 2021-04-29 /pmc/articles/PMC8154596/ /pubmed/33857379 http://dx.doi.org/10.1021/acs.jpcb.1c00653 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Musiał, Małgorzata
Cheng, Shinian
Wojnarowska, Zaneta
Paluch, Marian
Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title_full Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title_fullStr Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title_full_unstemmed Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title_short Magnitude of Dynamically Correlated Molecules as an Indicator for a Dynamical Crossover in Ionic Liquids
title_sort magnitude of dynamically correlated molecules as an indicator for a dynamical crossover in ionic liquids
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8154596/
https://www.ncbi.nlm.nih.gov/pubmed/33857379
http://dx.doi.org/10.1021/acs.jpcb.1c00653
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AT wojnarowskazaneta magnitudeofdynamicallycorrelatedmoleculesasanindicatorforadynamicalcrossoverinionicliquids
AT paluchmarian magnitudeofdynamicallycorrelatedmoleculesasanindicatorforadynamicalcrossoverinionicliquids

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