Diffusion-Oscillatory Dynamics in Liquid Water on Data of Dielectric Spectroscopy
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arXiv
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| Format: | Preprint |
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2016
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| author | Volkov, A. A. Artemov, V. G. Volkov Jr., A. A. Sysoev, N. N. |
| author_facet | Volkov, A. A. Artemov, V. G. Volkov Jr., A. A. Sysoev, N. N. |
| contents | When analyzing the broadband absorption spectrum of liquid water (10^10 - 10^13 Hz), we find its relaxation-resonance features to be an indication of Frenkel's translation-oscillation motion of particles, which is fundamentally inherent to liquids. We have developed a model of water structure, of which the dynamics is due to diffusion of particles, neutral H2O molecules and H3O+ and OH- ions - with their periodic localizations and mutual transformations. This model establishes for the first time a link between the dc conductivity, the Debye and the high frequency sub-Debye relaxations and the infrared absorption peak at 180 cm-1. The model reveals the characteristic times of the relaxations, 50 ps and 3 ps, as the lifetimes of water molecules and water ions, respectively. The model sheds light on the anomalous mobility of a proton and casts doubt on the long lifetime of a water molecule, 10 hours, commonly associated with autoionization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1606_06023 |
| institution | arXiv |
| publishDate | 2016 |
| record_format | arxiv |
| spellingShingle | Diffusion-Oscillatory Dynamics in Liquid Water on Data of Dielectric Spectroscopy Volkov, A. A. Artemov, V. G. Volkov Jr., A. A. Sysoev, N. N. Soft Condensed Matter Chemical Physics When analyzing the broadband absorption spectrum of liquid water (10^10 - 10^13 Hz), we find its relaxation-resonance features to be an indication of Frenkel's translation-oscillation motion of particles, which is fundamentally inherent to liquids. We have developed a model of water structure, of which the dynamics is due to diffusion of particles, neutral H2O molecules and H3O+ and OH- ions - with their periodic localizations and mutual transformations. This model establishes for the first time a link between the dc conductivity, the Debye and the high frequency sub-Debye relaxations and the infrared absorption peak at 180 cm-1. The model reveals the characteristic times of the relaxations, 50 ps and 3 ps, as the lifetimes of water molecules and water ions, respectively. The model sheds light on the anomalous mobility of a proton and casts doubt on the long lifetime of a water molecule, 10 hours, commonly associated with autoionization. |
| title | Diffusion-Oscillatory Dynamics in Liquid Water on Data of Dielectric Spectroscopy |
| topic | Soft Condensed Matter Chemical Physics |
| url | https://arxiv.org/abs/1606.06023 |