Abstract
The title compound, C20H16N4O4, contains two crystallographically independent molecules (A and B) in the asymmetric unit. Intramolecular N—H⋯O 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—H⋯O interactions.
Highlights
The title compound, C20H16N4O4, contains two crystallographically independent molecules (A and B) in the asymmetric unit
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
The crystal structure is stabilized by intermolecular C—H O interactions
Summary
USM, Penang, Malaysia, bDepartment of Earth Sciences, College of Sciences, Shiraz. University, Shiraz, Iran, and cDepartment of Chemistry, School of Science, Payame. R factor = 0.070; wR factor = 0.162; data-to-parameter ratio = 19.5. The title compound, C20H16N4O4, contains two crystallographically independent molecules (A and B) in the asymmetric unit. Intramolecular N—H O hydrogen bonds generate S(6). 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. 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—H O interactions
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