Crystal data

R factor = 0.057; wR factor = 0.168; data-to-parameter ratio = 13.4. The benzimidazolone residue in the title molecule, C10H9N3O3, is almost planar, with the largest deviation from the mean plane being 0.016 (2) A ̊ for the C atom linked to the nitro group. This plane is nearly perpendicular to the 1-allyl chain as indicated by the C—N—C—C torsion angle of 90.9 (3). The fused-ring system makes a dihedral angle of 5.6 (3) with the nitro group, leading to a synperiplanar conformation. In the crystal, zigzag supramolecular chains are formed along the a axis by N—H O hydrogen bonds. Related literature For pharmacological and biochemical properties of benz