Chowdhuri, Snehasis ; Chandra, Amalendu (2003) Tracer diffusion of ionic and hydrophobic solutes in water-dimethyl sulfoxide mixtures: effects of varying composition Journal of Chemical Physics, 119 (8). pp. 4360-4366. ISSN 1674-0068
Full text not available from this repository.
Official URL: http://link.aip.org/link/?JCPSA6/119/4360/1
Related URL: http://dx.doi.org/10.1063/1.1588997
Abstract
We have performed a series of molecular dynamics simulations of water-dimethyl sulfoxide (DMSO) mixtures containing either an ionic or a neutral atomic solute to investigate the effects of composition of the mixture on the diffusion of these solutes. Several different compositions of the mixtures ranging from pure DMSO to pure water are considered. Altogether, 23 different systems are simulated in the present work. The diffusion coefficients of both ionic and neutral solutes are found to show strong nonideal behavior with variation of composition of the solvent mixture. The extent of nonideality of the solute diffusion is found to be similar to the nonideality that is observed for the diffusion and orientational relaxation of water and DMSO molecules in these mixtures and is attributed to the presence of rather strong water-DMSO hydrogen bonds in these mixtures. The simulation results are compared with those of experiments wherever available.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Diffusion; Solutions; Solvent Effects; Liquid Mixtures; Molecular Orientation; Relaxation; Molecular Dynamics Method; Digital Simulation |
| ID Code: | 6162 |
| Deposited On: | 19 Oct 2010 11:09 |
| Last Modified: | 27 Jan 2011 09:13 |
Repository Staff Only: item control page
