Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 11 (November 2012)

organic compounds

Acta Cryst. (2012). E68, o3199-o3200    [ doi:10.1107/S1600536812043280 ]

3-Ethyl-3-hy­droxy-8-meth­oxy­quinoline-2,4(1H,3H)-dione monohydrate

S. Kafka, A. Pevec, K. Proisl, R. Kimmel and J. Kosmrlj

Abstract: In the title hydrate, C12H13NO4·H2O, the piperidine ring that is fused to the benzene ring is in a sofa conformation with the chiral C atom lying 0.4084 (18) Å out of the plane of the nine fused-ring atoms. In the crystal, O-H...O and N-H...O hydrogen bonds link the organic mol­ecules and water mol­ecules into chains running along the b-axis direction. The chains are further connected into layers parallel to the bc plane by [pi]-[pi] inter­actions between inversion-related benzene rings [centroid-centroid distance = 3.8846 (9) Å].

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