Acta Cryst. (2009). E65, o966-o967  [ doi:10.1107/S1600536809009593 ]

N-[1-(Biphenyl-4-yl)ethylidene]-N'-(2,4-dinitrophenyl)hydrazine

R. Kia, H.-K. Fun, B. Etemadi and H. Kargar

Abstract: The title compound, C₂₀H₁₆N₄O₄, contains two crystallographically independent molecules (A and B) in the asymmetric unit. Intramolecular N-HO hydrogen bonds generate S(6) ring motifs in both molecules. The dihedral angles between the nitro-substituted benzene rings and the two benzene rings in molecules A and B are 14.32 (9), 17.89 (9)° and 13.04 (9) and 25.71 (9)°. The ortho and para nitro groups form dihedral angles of 6.2 (2) and 8.5 (2)° in molecule A, and 5.3 (3) and 13.8 (2)° in molecule B, with the benzene rings to which they are attached. The crystal structure is stabilized by intermolecular C-HO interactions.

Online 8 April 2009

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