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Acta Cryst. (2012). E68, o2684-o2685
[ doi:10.1107/S1600536812034812 ]


H.-K. Fun, S. Chantrapromma, B. Nilwanna, T. Kobkeatthawin and N. Boonnak

Abstract: In the asymmetric unit of the title compound, C14H11N5O6, there are three crystallographically independent molecules with similar conformations but some differences in bond angles. The molecules are slightly twisted with the dihedral angles between the benzene rings being 10.02 (14), 8.41 (15) and 1.40 (14)°. In each molecule, an intramolecular N-H...O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked by weak C-H...O interactions into a three-dimensional network. [pi]-[pi] interactions with centroid-centroid distances of 3.5635 (17)-3.8273 (18) Å are observed.

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