1-Isopropyl-4-nitro-6-methoxy-1H-benzimidazole

Abstract

There are two independent molecules in the asymmetric unit of the title compound, C11H13N3O3. The interplanar angles for the two rings of the benzimidazole ring system is 2.21 (12)° in one molecule and 0.72 (12)° in the other. The nitro group is twisted in the same direction relative to the least-squares plane through its attached benzene ring in both molecules, with interplanar angles of 15.22 (9) and 18.02 (8)°. In the crystal structure, molecules are stacked along the a axis through π–π interactions (centroid–centroid distance 4.1954 Å). C—H...O hydrogen bonds are also present.