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Abstract:
In the title molecule, C 19H 18Br 4N 2O 2, the dihedral angle between the benzene rings is 73.9 (2)°. Two intramolecular N - H⋯O hydrogen bonds make S(6) ring motifs. In the crystal, molecules are linked via C - H⋯O interactions, forming chains propagating along the a-axis directon. A short C⋯Br [3.401 (5) Å] contact is present in the crystal structure, which is further stabilized by a π-π inter-action [centroid-centroid distance = 3.739 (3) Å].
