Abstract
The paper reports Monte Carlo and molecular dynamicsresults for pure liquid dimethyl sulfoxide (DMSO) at298 K and 1 atm. The classical 6–12 Lennard–Jones plusCoulomb pairwise potential was used to calculateintermolecular interaction energy. Potentialparameters for the liquid were optimized in this work.Some thermodynamic and dynamical properties obtained,such as heat of vaporization, density and diffusioncoefficient, are in good agreement with theexperimental values. The present model is comparedwith other models for DMSO reported previously. It isshown to be an improvement over earlier potentials.The structure factors and the radial distributionfunctions (rdf), are compared with experimentalresults for the liquid. The analysis shows that thestructure of DMSO is not completely understood yet anddeserves deeper investigation. The geometry of thedimer that corresponds to the rdf plots obtained, isreported. The results suggest that the dipole momentof this dimer plays an important role in the structureof the liquid.
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Cordeiro, J.M.M. Study of Liquid Dimethyl Sulfoxide by Computer Simulation. Molecular Engineering 8, 303–313 (1999). https://doi.org/10.1023/A:1008359313897
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DOI: https://doi.org/10.1023/A:1008359313897