Acta Cryst. (2002). E58, o920-o922  [ doi:10.1107/S1600536802012564 ]

Quinoline N-oxide dihydrate from powder data

S. N. Ivashevskaja, L. A. Aleshina, V. P. Andreev, Y. P. Nizhnik and V. V. Chernyshev

Abstract: The structure of quinoline N-oxide dihydrate, C₉H₇NO·2H₂O, has been determined from X-ray powder diffraction data, using grid search technique and a bond-restrained Rietveld refinement. The structure features an interesting system of co-operative hydrogen bonds, which apparently involves all four `active' H atoms, and is based on the infinite chains formed by two alternating symmetry-independent water molecules. The chains are further interlinked through two more symmetry-independent hydrogen bonds which make use of the N-oxide O atom as hydrogen-bond acceptor.

Online 25 July 2002

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