Experimental Crystal data

R factor = 0.038; wR factor = 0.111; data-to-parameter ratio = 13.5. In the title compound, C30H25N3O3, the central imidazole ring forms dihedral angles of 77.34 (6), 12.56 (6) and 87.04 (6), respectively, with the o-nitrobenzene ring and the phenyl substituents in the 5- and 4-positions. The molecular conformation is stabilized by weak intramolecular C—H interactions. In the crystal, molecules are linked by O—H N hydrogen bonds, forming chains running parallel to the b-axis direction. Related literature For the synthesis of imidazole derivatives, see: Ding et al