Acta Cryst. (2009). E65, o1466 [ doi:10.1107/S1600536809020066 ]
Abstract: The molecule of the title compound, C14H11N3O4, is approximately planar, the dihedral angle between the planes of the two substituted benzene rings being 2.54 (7)°. The molecule exists in a trans configuration with respect to the central methylidene unit. In the crystal structure, molecules are linked through intermolecular O-HO, N-HO and C-HO hydrogen bonds, forming layers parallel to (101). The O/N-HO and C-HO interactions form a pair of bifurcated acceptor bonds involving the cabonyl/nitro O atom, generating an R21(6) motif.
Online 6 June 2009
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