Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 116, Issue 8, Pages 3370-3377Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1436074
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While dynamics of polar solvation have been tabulated for a wide range of pure polar solvents, substantially less is known about the dynamic response of solvent mixtures. Here, results for polar solvation dynamics are presented for the nonassociating mixture of a dipolar solvent, acetonitrile, and a quadrupolar solvent, benzene. The solvation response observed is sensitive to the mixing of the pure solvents, affecting both the inertial and diffusive components of the solvation response function. Addition of acetonitrile to benzene increases the amplitude of the inertial response. At high benzene mole fractions, the diffusive relaxation reveals a slow component attributed to translational diffusion of the acetonitrile. (C) 2002 American Institute of Physics.
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