Crystal structure of hydrobromides of pyridines and quinolines N-oxides
- Authors: Ryzhakov A.V.1, Andreev V.P.2, Sobolev P.S.2, Tafeenko V.A.3
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Affiliations:
- Northern Water Problems Institute, Karelian Research Center
- Petrozavodsk State University
- Lomonosov Moscow State University
- Issue: Vol 87, No 2 (2017)
- Pages: 215-218
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/218164
- DOI: https://doi.org/10.1134/S1070363217020104
- ID: 218164
Cite item
Abstract
Structures of hydrobromides of quinoline, 4-methylquinoline, pyridine, and 4-methylpyridine N-oxides have been elucidated by means of X-ray diffraction analysis. In contrast to other salts, quinoline N-oxide hydrobromide crystallizes in the form of dimer with two water molecules. The oxygen atom of the organic molecule is coordinated with water protons, and its state is close to sp2-hybridization. In the cases of other hydrobromides, the oxygen atom is strongly bound to the proton of НBr and exhibits sp3-hybridization.
About the authors
A. V. Ryzhakov
Northern Water Problems Institute, Karelian Research Center
Email: andreev@psu.karelia.ru
Russian Federation, Petrozavodsk
V. P. Andreev
Petrozavodsk State University
Author for correspondence.
Email: andreev@psu.karelia.ru
Russian Federation, pr. Lenina 33, Petrozavodsk, 185910
P. S. Sobolev
Petrozavodsk State University
Email: andreev@psu.karelia.ru
Russian Federation, pr. Lenina 33, Petrozavodsk, 185910
V. A. Tafeenko
Lomonosov Moscow State University
Email: andreev@psu.karelia.ru
Russian Federation, Moscow