Journal
FLUID PHASE EQUILIBRIA
Volume 441, Issue -, Pages 43-48Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fluid.2017.01.022
Keywords
Deep Eutectic Solvents; Hydrogen bond; Molecular interactions; Molecular dynamics simulations; Ionic liquids
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Several novel applications of Deep Eutectic Solvents (DESs) have emerged recently. With a growing interest in the field, there is an urge to understand formation and functioning of these solvents at molecular level, which in turn would assist in further designing of DESs. We herein performed molecular dynamics simulations on three of the commonly used type HI DES, viz, reline, ethaline, and glyceline, which are mixtures of urea, ethylene glycol, and glycerol with choline chloride at eutectic composition. Our results explain the role of inter-molecular and intra-molecular hydrogen bonding and energies on formation of these DESs. Furthermore, the ability of these DESs to be altered in a desired way through a simple addition of water makes it versatile solution for several other applications. Hence, simulations are also performed on the aqueous DES solutions, which reveal the effect of water on intermolecular network of interaction existing within these DESs. (C) 2017 Elsevier B.V. All rights reserved.
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