(E)-1-[1-(3-Chlorophenyl)ethylidene]-2-(2,4-dinitrophenyl) hydrazine

There are two crystallographically independent molecules in the asymmetric unit of the title compound, C 14H 11ClN 4O 4, with the same E conformation about the C=N double bond. The molecules are approximately planar, with a dihedral angle between the benzene rings of 10.24 (12)° in one molecule and 4.73 (12)° in the other. In both molecules, the ortho-nitro groups of the 2,4-dinitro-phenyl units are coplanar to their bound benzene rings, whereas the para-nitro groups are slightly twisted. In each molecule, intra-molecular N - H⋯O hydrogen bonds generate S(6) ring motifs. In the crystal, molecules are linked by weak C - H⋯O interactions into sheets parallel to the (1̄02) plane. These sheets are stacked by π-π interactions, with centroid-centroid distances of 3.7008 (14) and 3.7459 (14) Å. A Cl⋯O short contact [3.111 (2) Å] is observed.