VIBRATIONAL DYNAMICS OF THE 3-METHYLPYRIDINE MOLECULE AND THE REGULARITIES OF THE MANIFESTATION OF INTERMOLECULAR INTERACTIONS IN RAMAN SPECTRA
In this work, the vibrational dynamics of the 3-methylpyridine molecule and the regularities of the manifestation of intermolecular
interactions in the Raman spectra were studied. Based on Raman spectroscopy, the changes in the frequencies, intensities, and
shapes of the main vibrational modes under the influence of the environment were analyzed. Special attention was paid to the
spectral features of H-bonds formed due to the nitrogen atom and methyl group in the molecule. The experimental results showed
a shift in the frequencies of some modes, a broadening of the lines, and a redistribution of intensities. These changes were explained
by intermolecular association processes. The results obtained indicate a close relationship between intramolecular vibrations and
intermolecular interactions. The results of the study serve to provide a deeper understanding of the structural-dynamic properties
of nitrogen-containing aromatic compounds.
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