Solvation dynamics in slow, viscous liquids: application to amides

Biswas, Ranjit ; Bagchi, Biman (1996) Solvation dynamics in slow, viscous liquids: application to amides Journal of Physical Chemistry, 100 (4). pp. 1238-1245. ISSN 0022-3654

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As the viscosity of a liquid increases rapidly in the supercooled regime, the nature of molecular relaxation can exhibit dynamics rather different from the fast dynamics observed in the normal regime. In this article, we present theoretical studies of solvation dynamics and orientational relaxation in slow liquids. As the local short-range correlations are important in the slow liquids, we have extended our previous theory to take into account the short-range pair correlations between the polar solute and the dipolar solvent molecules. Application of the generalized theory to the study of solvation dynamics of amide systems gives nice agreement with the experimental results of Maroncelli and co-workers (J. Phys. Chem. 1990, 94, 4929). The theory also provides valuable insight into the orientational relaxation processes in the viscous liquids.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:4336
Deposited On:18 Oct 2010 08:52
Last Modified:10 Jan 2011 05:58

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