Preparation of non-Kekulé- and nondisjoint-type aromatic polyamines by palladium-catalyzed polycondensation and their poly(cationic radical)s

Tsuyoshi Michinobu, Jun Inui, Hiroyuki Nishide

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Abstract

A series of triarylamine polymers were prepared by palladium-catalyzed polycondensation. Extension of the π-conjugation was analyzed by UV and electrochemical measurements, which revealed the degree of off-coplanarity in the polymer framework. Chemical oxidation of the polymer with NOPF6 gave the corresponding poly(aminium cationic radical). The ESR signal at room temperature indicated an exchange interaction between the radicals in the polymer. The spectrum recorded at 12 K displayed a ΔMs = ±2 transition signal at half-field, which was characteristic of multiplet species.

Original languageEnglish
Pages (from-to)1945-1949
Number of pages5
JournalPolyhedron
Volume22
Issue number14-17
Publication statusPublished - 2003 Jul 15

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Keywords

  • Aminium cationic radical
  • Aromatic polyamine
  • Non-Kekulé molecule
  • Palladium-catalyzed amination
  • Polycondensation

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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