Received 18 March 2013
aCollege of Food Science and Light Industry, Nanjing University of Technology, Xinmofan Road No. 5 Nanjing, Nanjing 210009, People's Republic of China, and bCollege of Science, Nanjing University of Technology, Xinmofan Road No. 5 Nanjing, Nanjing 210009, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title hydrate, C19H15N3O3·H2O, the three aromatic groups in the quinoline derivative are close to coplanar: the central oxadiazole fragment makes dihedral angles of 15.7 (2)° with the benzene ring and 5.30 (14)° with the quinoline ring system. In the crystal, the organic molecules are connected with water molecules by pairs of O-HN hydrogen bonds involving the quinoline and oxadiazole N atoms. The molecules form stacks along the a axis, neighboring molecules within each stack being related by inversion and the shortest distance between the centroids of the oxadiazole and pyridine rings being 3.500 (2) Å. Molecules from neighboring stacks are linked by weak C-HO hydrogen bonds, forming a three-dimensional structure.
For the preparation of the title compound, see: Shishue & Henry (1989). For the general synthetic procedure, see: Munoz-Muniz & Juaristi (2003). For standard bond-length data, see: Allen et al. (1987).
Data collection: CAD-4 EXPRESS (Enraf-Nonius, 1994); cell refinement: CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo,1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: YK2090 ).
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