Articles written in Proceedings – Section A
Volume 50 Issue 3 September 1959 pp 213-218
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.
Volume 55 Issue 4 April 1962 pp 221-226
The Raman spectra of 2-picoline N-oxide and 3-picoline N-oxide have been recorded. The Raman shift in the region of 1254 cm.−1 has been assigned to the N-O stretching vibration. The variations in the frequency of the N-O bond on admixture of these N-oxides with phenol have been studied and explained to be due to hydrogen bond formation of the type (N-O......H).
Volume 55 Issue 6 June 1962 pp 360-366
A convenient method for the preparation of 8-hydroxyquinoline N-oxide in fair yields has been reported. The presence of strong intramolecular association in 8-hydroxyquinoline N-oxide has been demonstrated. A preliminary appraisal of the utility of this compound as an analytical reagent has been carried out and it has been found that 8-hydroxyquinoline N-oxide is more selective in metal-complex formation than 8-hydroxyquinoline.