organic compounds
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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—Hπ interactions. In the crystal, molecules are linked by O—HN hydrogen bonds, forming chains running parallel to the b-axis direction.