Summary
The Raman spectra of pyridine N-oxide and its solutions in phenol, methanol and dioxan have been recorded. The band at 1254±10 cm.−1 has been assigned to the N-O stretching vibration. The variations in the double bond frequencies of pyridine ring, and in the frequency of N-O bond, owing to hydrogen bond formation, have been listed. On conversion of pyridine to pyridine N-oxide the various frequencies attributed to the different modes of vibrations in the pyridine ring get altered as a result of the considerable disturbance caused by the new bond.
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Communicated by Prof. T. R. Seshadri,f.a.sc.
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Ramaiah, K., Srinivasan, V.R. Studies in heterocyclic N-oxides. Proc. Indian Acad. Sci. 50, 213–218 (1959). https://doi.org/10.1007/BF03048856
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DOI: https://doi.org/10.1007/BF03048856