Abstract
Liquid solutions and mixtures are part of our everyday lives and also important for their chemical and industrial applications. While considered fairly unattractive substances when kept in bottles and containers, their behavior as molecules can be completely the opposite, continuously attracting scientists to explain it better. Very strong repulsive and attractive interactions between the molecules can create most intriguing local structures, aggregates and complexes, whose spatial organization is often difficult to rationalize. Also, the same mixture can behave completely differently depending on the composition ratio, affecting strongly its macroscopic properties. To gain insight into the complex world of binary liquid mixtures, deep eutectic solvents and ionic liquid systems, combined theoretical and experimental studies are necessary. In this chapter we introduce the methodology of computer simulations and illustrate with several examples of the often-unexpected behavior of many liquid mixtures.
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Abbreviations
- BBGKY:
-
Bogolyubov-Born-Green-Kirkwood-Yvon
- CG:
-
Coarse-grained
- FF :
-
Force field
- GAFF :
-
Amber General Force Field
- ILs:
-
Ionic liquids
- LqE :
-
Low-q excess
- KFV :
-
Key feature vectors
- MC:
-
Monte Carlo
- MD :
-
Molecular Dynamics
- MM :
-
Molecular Mechanics
- NMR :
-
Nuclear Magnetic Resonance
- NPT:
-
Isothermal–isobaric ensemble
- PGM :
-
Platinum group metal
- RDF :
-
Radial distribution function
- SAXS :
-
X-ray scattering
- SDF :
-
Spatial distribution functions
- THF :
-
Tetrahydrofuran
- VP :
-
Voronoi polyhedron
- H E :
-
Excess molar enthalpies
- R G :
-
Radius of gyration
- R H :
-
Hydrodynamic radius
- V E :
-
Excess molar volumes
- BMB :
-
bis(mandelato)-borate
- BOB :
-
bis(oxalato)-borate
- DBE :
-
di-n-butyl ether
- DME :
-
1,2-Dimethoxyethane
- DMSO :
-
Dimethyl sulfoxide
- EAN:
-
Ethylammonium nitrate
- NMP :
-
N-methyl-2-pyrrolidone
- P6,6,6,14:
-
trihexyl(tetradecyl)phosphonium
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Acknowledgements
S. Perepelytsya acknowledges the support from the National Academy of Sciences of Ukraine (project 0117U000240) F. Mocci thanks the Regione Sardegna for support, grant number RASSR 81788 and MIUR, Project PRIN2017 “CANDL2” (Grant 2017W75RAE). A. Laaksonen also thanks the Swedish Research Council for support (Project No. 2019-03865) and for a partial support by a grant from the Ministry of Research and Innovation of Romania (CNCS-UEFISCDI, Project No. PN-III-P4- P4-ID-PCCF-2016-0050, within PNCDI III. Many simulations described were performed using resources provided by the Swedish National Infrastructure for Computing (SNIC) at PDC, HPC2N and NSC.
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Engelbrecht, .d., Mocci, F., Wang, Y., Perepelytsya, S., Vasiliu, T., Laaksonen, A. (2022). Molecular Perspective on Solutions and Liquid Mixtures from Modelling and Experiment. In: Bulavin, L., Lebovka, N. (eds) Soft Matter Systems for Biomedical Applications. Springer Proceedings in Physics, vol 266. Springer, Cham. https://doi.org/10.1007/978-3-030-80924-9_3
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