Freezing of Intramolecular Motion around the Chiral Center of an Antiferroelectric Liquid Crystal as Evidenced by Damped Transient Oscillations in ^<13>C-^1H Cross Polarization : Condensed Matter: Electronic Properties, etc.
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概要
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Transient oscillations in ^<13>C-^1H cross-polarization dynamics in NMR is studied for an antiferroelectric chiral smectic liquid crystal MHPOBC. Decay time of oscillation, which is determined by proton spin-diffusion, probes intramolecular motions. Different behaviors are found for the chain conformational motions around the chiral center in the paraelectric smectic A(S_A) and the antiferroelectric chiral smectic CA(S^*_<CA>) phases: Intramolecular motion of the chiral chain in the S_A Phase is frozen in the S^*_<CA> phase. This enables a large transverse dipole moment of a molecule to come out.
- 社団法人日本物理学会の論文
- 2000-09-15
著者
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Fujimori H
Inst. Molecular Sci. Okazaki
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Fujimori Hiroki
Institute For Molecular Science:(present) College Of Humanities And Sciences Nihon University
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MIYAJIMA Seiichi
Institute for Molecular Science
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Miyajima Seiichi
Institute For Molecular Science:(present)miyajima Shoyu Co. Ltd.
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BAYLE Jean-Pierre
Institute for Molecular Science
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Bayle Jean-pierre
Institute For Molecular Science:(present)laboratoire De Chimie Structurale Organique Universite Pari
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FUJIMORI Hiroki
Institute for Molecular Science
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