Crystal structure of N′-[(E)-3,5-di­chloro-2-hy­droxy­benzyl­idene]-4-nitro­benzo­hydrazide di­methyl­formamide monosolvate

In the title compound, C(14)H(9)Cl(2)N(3)O(4)·C(3)H(7)NO, the hydrazone mol­ecule adopts an E conformation with respect to azomethine bond, and the dihedral angle between the two aromatic rings [8.96 (11)°] shows that the rings are almost co-planar. The planar conformation of the mol­ecule is stabilized by the intra­molecular O—H⋯N hydrogen bond involving the OH group and azomethine N atom. The azomethine and keto bond distances [1.269 (2) and 1.210 (2) Å, respectively] are very close to the formal C=N and C=O bond lengths. The di­methyl­formamide solvent mol­ecule is connected to the hydrazone NH group via an N—H⋯O hydrogen bond. In the crystal, non-classical C—H⋯O and C—H⋯Cl hydrogen bonds link the mol­ecules into chains along [322]. A supra­molecular three-dimensional architecture is created by weak C—Cl⋯π [4.163 (3) Å, 83.26 (9)°] and π–π [centroid–centroid distance = 4.0395 (14) Å] inter­actions.