Abstract
The electronic absorption spectrum of pyridine N-oxide vapor in the region of the third electronic transition (43,000-46,000 cm-1) was recorded. The frequencies and intensities of vibronic bands, including the 0–0 band at 43,896 cm-1, were measured An assignment of the frequencies of fundamental vibrations in the third electronically excited state is suggested The matrices of rotation and shift of normal coordinates due to electronic excitation are calculated, and the vibronic spectrum of pyridine N-oxide is interpreted on the basis of these matrices.
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Translated fromZhurnal Struktumoi Khimii, Vol. 38, No. 2, pp. 357–362, March–April, 1997.
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Berezm, K.V., Babkov, L.M. Vibrational structure of the electronic transition to the third excited singlet state of pyridine N-oxide. J Struct Chem 38, 287–291 (1997). https://doi.org/10.1007/BF02762659
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DOI: https://doi.org/10.1007/BF02762659