1H and 19F NMR relaxations of electroconducting polypyrrole and polythiophene trifluoromethanesulfonates.

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概要

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• The NMR relaxation time <I>T</I><SUB>1</SUB> of <SUP>1</SUP>H and that of <SUP>19</SUP>F were determined for polypyrrole and polythiophene doped with trifluoromethanesulfonate (triflate) or perchlorate ions. The <SUP>1</SUP>H <I>T</I><SUB>1</SUB> is governed by the paramagnetism of the polymer chains. The <SUP>19</SUP>F <I>T</I><SUB>1</SUB> of the triflate ions is explained by the combined effect of the F–F dipolar interaction and the electron–nucleus coupling. The activation energy for CF<SUB>3</SUB> reorientation about the C<SUB>3</SUB> axis was 7.5 kJ mol<SUP>−1</SUP> for polypyrrole triflate and 15 kJ mol<SUP>−1</SUP> for the corresponding polythiophene.

• 公益社団法人 日本化学会の論文

著者

• Mizuno Motohiro

  Department Of Chemistry Faculty Of Science Kanazawa University

• Asaji Tetsuo

  Department Of Chemistry Faculty Of Science Nagoya University

• Nakamura Daiyu

  Department of Chemistry Faculty of Science Nagoya University

• Inoue Motomichi

  Department of Chemistry and Department of Physics, Faculty of Science, Nagoya University

• Inoue Michiko

  CIPM, Universidad de Sonora

• Mizuno Motohiro

  Department of Chemistry, Faculty of Science, Nagoya University

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