2,4-Diphenyl-6-trifluoromethyl-2,3-dihydro-1H,5H-pyrrolo-[3,4-c]pyrrole-1, 3-dione

The asymmetric unit of the title compound, C ₁₉H ₁₁F ₃N ₂O ₂, contains two crystallographically unique mol-ecules which differ in the rotation of a phenyl ring and a -CF3 substituent. The dihedral angles involving the pyrrole ring and the attached phenyl ring are 62.82 (8) and 71.54 (7)° in the two molecules. The difference in the rotation of the CF3 groups with respect to the pyrrolo rings to which they are attached is 23.5(1)°. For one mol-ecule, there is a close contact between an H atom and the centroid of the phenyl ring of an adjacent mol-ecule (2.572 Å). A similar contact is lacking in the second mol-ecule. In the crystal, N - H⋯O inter-actions connect adjacent mol-ecules into a chain normal to (01 ). Crystallographically unique mol-ecules alternate along the hydrogen-bonded chains.