CRYSTAL STRUCTURES AND STABILITY OF HYDRATES AND DEUTERIOHYDRATES OF QUINOLINE N-OXIDES

Vladimir P. Andreev, Dmitry O. Zaitsev, Yurii A. Velikodny, Vladimir V. Chernyshev

Abstract


The protiated (H2O) and deuteriated (D2O) crystallohydrates of quinoline, 2- methylquinoline and 4-methylquinoline N-oxides demonstrate different behavior at ambient conditions, namely, the deuteriated dihydrates undergo solid state transformation into crystalline anhydrous or hemihydrate forms, while protiated dihydrates loss 3D periodicity. In attempts to explain this phenomenon, the crystal structures of the six compounds – namely, quinoline N-oxide and quinoline N-oxide dihydrate, 2-methylquinoline N-oxide hemideuteriohydrate and 4-methylquinoline N-oxide dihydrate, 4-methylquinoline N-oxide and 4-methylquinoline N-oxide dihydrate – were analyzed.

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DOI: http://dx.doi.org/10.17628/ecb.2014.3.452-456

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