Plowas-Korus, Iwona and Korus, Pawel and Buchner, Richard (2025) Cooperative Dynamics and Hydration of Aqueous D-Mannitol and myo-Inositol. JOURNAL OF PHYSICAL CHEMISTRY B, 129 (2). pp. 712-718. ISSN 1520-6106, 1520-5207
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The cooperative dynamics and hydration of D-mannitol and myo-inositol in aqueous solution at 25 degrees C were investigated by broad-band dielectric relaxation spectroscopy (DRS) for solute concentrations c < 0.9M. The recorded spectra, covering the frequency range 0.05 <= nu/GHz <= 50, can be described as a superposition of three Debye-type relaxation processes. The determined total effective hydration numbers, Z(t), as well as the effective dipole moments, mu(eff), of D-mannitol and myo-inositol do not depend on solute concentration. The Z(t) values obtained for both sugar alcohols are significantly smaller than that of the previously studied xylitol. In contrast to aqueous xylitol, the dielectric spectra also showed no indication of the formation of D-mannitol or myo-inositol aggregates.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DIELECTRIC-RELAXATION SPECTROSCOPY; SUGAR ALCOHOLS; BIOTECHNOLOGICAL PRODUCTION; PHYSICOCHEMICAL PROPERTIES; WATER; IMPACT; AGGREGATION; GLYCEROL; INSIGHTS; POLYOLS; |
| 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) > PD Dr. Richard Buchner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Sep 2026 08:59 |
| Last Modified: | 15 Sep 2026 08:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66888 |
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