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The asymmetric unit of the title compound, C16H14N4O4, contains one half-mol­ecule of (nitro­phen­yl)ethanimine and the complete mol­ecule is generated by a crystallographic inversion centre. The mol­ecule has an E conformation with respect to each C=N double bond. The central C=N—N=C plane is twisted from the benzene rings with a dihedral angle of 24.76 (11)°. In the crystal, C—H...O inter­actions link the molecules to form sheets that lie parallel to (10-4).

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The mol­ecule of the title hydrazone derivative, C14H11FN4O4, is nearly planar, with a dihedral angle between the benzene rings of 3.71 (7)°. The central ethyl­idenehydrazine N—N=C—C plane makes dihedral angles of 5.32 (10) and 9.02 (10)° with the 2,4-dinitro- and 3-fluoro-substituted benzene rings, respectively. An intra­molecular N—H...O bond generates an S(6) ring motif. In the crystal, mol­ecules are linked by weak C—H...O inter­actions into a sheet parallel to (10-1). The mol­ecules are further stacked along the a axis by π–π inter­actions with centroid–centroid distances of 3.6314 (9) and 3.7567 (10) Å. A C...F short contact [2.842 (3) Å] is observed. The 3-fluoro­phenyl group is disordered over two orientations with a site-occupancy ratio of 0.636 (3):0.364 (3).
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