Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

We have measured the dynamics of solvation of a triplet state probe, quinoxaline, in the glass-forming dipolar liquid butyronitrile near its glass transition temperature Tg=95K. The Stokes shift correlation function displays a relaxation time dispersion of considerable magnitude and the optical linewidth changes along the solvation coordinate in a nonmonotonic fashion. These features are characteristic of solvation in viscous solvents and clearly indicate heterogeneous dynamics, i.e., spatially distinct solvent response times. Using the dielectric relaxation data of viscous butyronitrile as input, a microscopic model of dipolar solvation captures the relaxation time, the relaxation dispersion, and the amplitude of the dynamical Stokes shift remarkably well.

Bibliography

Ito, N., Duvvuri, K., Matyushov, D. V., & Richert, R. (2006). Solvent response and dielectric relaxation in supercooled butyronitrile. The Journal of Chemical Physics, 125(2).

Authors 4
  1. Naoki Ito (first)
  2. Kalyan Duvvuri (additional)
  3. Dmitry V. Matyushov (additional)
  4. Ranko Richert (additional)
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Dates
Type When
Created 19 years, 1 month ago (July 13, 2006, 6:18 p.m.)
Deposited 1 year, 6 months ago (Feb. 5, 2024, 4:08 a.m.)
Indexed 4 weeks, 1 day ago (July 30, 2025, 6:46 a.m.)
Issued 19 years, 1 month ago (July 13, 2006)
Published 19 years, 1 month ago (July 13, 2006)
Published Online 19 years, 1 month ago (July 13, 2006)
Published Print 19 years, 1 month ago (July 14, 2006)
Funders 0

None

@article{Ito_2006, title={Solvent response and dielectric relaxation in supercooled butyronitrile}, volume={125}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2212420}, DOI={10.1063/1.2212420}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Ito, Naoki and Duvvuri, Kalyan and Matyushov, Dmitry V. and Richert, Ranko}, year={2006}, month=jul }