Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 10, Issue 3, Pages 1261-1270Publisher
MDPI
DOI: 10.3390/ijms10031261
Keywords
Binary Solvent; Dielectric properties; Activation energy; MD
Funding
- National Science Foundation of China [60531010]
- Research Fund for the Doctoral Program of Higher Education of China [20070610120]
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In this paper, the dielectric properties of water-dimethylsulfoxide (DMSO) mixtures with different mole ratios have been investigated in the range of 1 GHz to 40 GHz at 298 K by using a molecular dynamics (MD) simulation. Only one dielectric loss peak was observed in the frequency range and the relaxation in these mixtures can be described by a single relaxation time of the Davidson-Cole. It was observed that within experimental error the dielectric relaxation can be described by the Debye-like model (beta approximate to 1, S. M. Puranik, et al. J. Chem. Soc. Faraday Trans. 1992, 88, 433-435). In general, the results are very consistent with the experimental measurements.
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