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The Entropy of Deep Eutectic Solvent Formation

The standard entropies S(298°E) of deep eutectic solvents (DESs), which are liquid binary mixtures of a hydrogen bond acceptor component and a hydrogen bod donor one, are calculated from their molecular volumes, derived from their densities or crystal structures. These values are compared with those...

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Autor principal: Marcus, Yizhak
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7513049/
https://www.ncbi.nlm.nih.gov/pubmed/33265613
http://dx.doi.org/10.3390/e20070524
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author Marcus, Yizhak
author_facet Marcus, Yizhak
author_sort Marcus, Yizhak
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description The standard entropies S(298°E) of deep eutectic solvents (DESs), which are liquid binary mixtures of a hydrogen bond acceptor component and a hydrogen bod donor one, are calculated from their molecular volumes, derived from their densities or crystal structures. These values are compared with those of the components—pro-rated according to the DES composition—to obtain the standard entropies of DES formation Δ(f)S. These quantities are positive, due to the increased number and kinds of hydrogen bonds present in the DESs relative to those in the components. The Δ(f)S values are also compared with the freezing point depressions of the DESs Δ(fus)T/K, but no general conclusions on their mutual relationship could be drawn.
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spelling pubmed-75130492020-11-09 The Entropy of Deep Eutectic Solvent Formation Marcus, Yizhak Entropy (Basel) Article The standard entropies S(298°E) of deep eutectic solvents (DESs), which are liquid binary mixtures of a hydrogen bond acceptor component and a hydrogen bod donor one, are calculated from their molecular volumes, derived from their densities or crystal structures. These values are compared with those of the components—pro-rated according to the DES composition—to obtain the standard entropies of DES formation Δ(f)S. These quantities are positive, due to the increased number and kinds of hydrogen bonds present in the DESs relative to those in the components. The Δ(f)S values are also compared with the freezing point depressions of the DESs Δ(fus)T/K, but no general conclusions on their mutual relationship could be drawn. MDPI 2018-07-12 /pmc/articles/PMC7513049/ /pubmed/33265613 http://dx.doi.org/10.3390/e20070524 Text en © 2018 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Marcus, Yizhak
The Entropy of Deep Eutectic Solvent Formation
title The Entropy of Deep Eutectic Solvent Formation
title_full The Entropy of Deep Eutectic Solvent Formation
title_fullStr The Entropy of Deep Eutectic Solvent Formation
title_full_unstemmed The Entropy of Deep Eutectic Solvent Formation
title_short The Entropy of Deep Eutectic Solvent Formation
title_sort entropy of deep eutectic solvent formation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7513049/
https://www.ncbi.nlm.nih.gov/pubmed/33265613
http://dx.doi.org/10.3390/e20070524
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