Diffusion of Li+ ions in concentrated solutions of LiNO3 in 1,3-diaminopropane |
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| Authors: | Hirokazu Hayashi Yoshio Nakamura |
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| Affiliation: | (1) Department of Chemistry, Faculty of Science, Hokkaido University, 060 Sapporo, Japan;(2) Present address: Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute, 319-11 Ibaraki-ken, Japan |
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| Abstract: | The temperature and composition dependences of the self-diffusion coefficient of Li+ ions were investigated for concentrated solutions of LiNO3 in 1,3-diaminopropane by means of the NMR spin-echo technique from 20 to 50°C. The composition dependence of the activation energy shows a bend around 30 mol % LiNO3. This is consistent with the previous results obtained from the electrical conductivity and the correlation time of the rotational motion of the solvating ions, and suggests that solvent molecules may act as bridges between Li+ ions at higher concentrations of LiNO3. |
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| Keywords: | Diffusion Li+ ions concentrated solutions LiNO3 1,3-diaminopropane NMR |
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