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Abstract:
The asymmetric unit of the title compound, C24H24N2O4, comprises two crystallographically independent molecules A and B. The dihedral angles between the central dimethyl-substituted benzene ring and the two outer benzene rings are 49.5 (1) and 5.06 (11)° in molecule A, and 42.55 (8) and 5.77 (9)° in molecule B. In each molecule, two strong intramolecular O—H⋯N hydrogen bonds generate two S(6) ring motifs. The crystal structure is further stabilized by intermolecular π–π [centroid–centroid distances of 3.591 (1)–3.876 (1) Å] interactions.