Fukasawa, T. and Sato, Takaaki and Watanabe, J. and Hama, Y. and Kunz, Werner and Buchner, Richard (2005) Relation between dielectric and low-frequency Raman spectra of hydrogen-bond liquids. PHYSICAL REVIEW LETTERS, 95 (19): 197802. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
We analyzed the complex dielectric and Raman spectra of hydrogen-bond liquids in the microwave to terahertz frequency range. As for water and methanol, the high-frequency component of the dielectric spectrum, i.e., the small deviation from the principal Debye relaxation, clearly corresponds to the Raman spectrum. This indicates that the cooperative relaxation, accompanied by huge polarization fluctuation, is virtually not Raman active, whereas the faster processes reflect common microscopic dynamics. For ethylene glycol, the shape of the Raman spectrum also resembles that of the high-frequency deviation of the dielectric spectrum, but, additionally, a weak manifestation of the cooperative relaxation arising from quadrupolar conformers is detected.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COLLECTIVE MOTIONS; WATER; DYNAMICS; SPECTROSCOPY; RELAXATION; MIXTURES; REGION; H2O; D2O; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Apr 2021 07:54 |
| Last Modified: | 23 Apr 2021 07:54 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35436 |
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