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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry