π*-σ* hyperconjugation mechanism on the rotational barrier of the methyl group (III): Methyl-azabenzenes in the ground, excited, and anionic states

Y. Kawamura, T. Nagasawa, H. Nakai

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Abstract

An attempt was made to study the internal rotations of the methyl group in o- and m-methylpyridines, 2-methylpyrazine, 4-methylpyrimidine, 4-methylpyridadine, and 4-methyl-1,2,3-triazine. A mechanism of the rotational barrier changes by excitation and electron attachment and the relationship of the rotational barriers with the number and position of the substituted nitrogen atoms were shown.

Original languageEnglish
Pages (from-to)8357-8363
Number of pages7
JournalJournal of Chemical Physics
Volume114
Issue number19
DOIs
Publication statusPublished - 2001 May 15

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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