Proton diffusion in the premelted state of 1-hexadecanol.
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概要
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Proton diffusion in the α-phase of polycrystalline 1-hexadecanol was studied using C<SUB>16</SUB>H<SUB>33</SUB>O<SUP>3</SUP>H and C<SUB>15</SUB>H<SUB>31</SUB>–<SUP>14</SUP>CH<SUB>2</SUB>OH. It was found that hydroxyl proton diffuses translationally more easily than the whole molecule. A value of (7±5)×10<SUP>−7</SUP> cm<SUP>2</SUP>/s was obtained for the diffusion coefficient of the hydroxyl proton in the α-phase. This fast diffusion is ascribed to the presence of molecular rotation involving hydrogen-bond networks in the α-phase of the crystal. Since the mechanism for the proton diffusion seems to be the same as that for the protonic conduction in this α-phase, proton mobility can be calculated from the diffusion coefficient, assuming that molecular rotation makes the rate determining step in both processes.
- 公益社団法人 日本化学会の論文
著者
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Morikawa Naotake
Radioisotope Center The University Of Tokyo
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Koga Shozo
The Institute of Applied Microbiology, The University of Tokyo
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Murase Norio
The Institute of Applied Microbiology, The University of Tokyo
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Fujita Teruyuki
The Institute of Applied Microbiology, The University of Tokyo
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