N,N′-Bis(4-nitrophenyl)biphenyl-2,2′-dicarboxamide

Abstract

In the title compound, C26H18N4O6, the amide units are approximately coplanar with the benzene ring bonded to the N atom [dihedral angles of 10.59 (10) and 24.00 (12)°], but twisted significantly out of the plane of the benzene ring bonded to the carbonyl C atom [dihedral angles of 57.82 (9) and 58.05 (9)°]. The dihedral angle between the two rings of the biphenyl unit is 77.66 (4)°. Intramolecular N—H...O hydrogen bonds and weak C—H...O interactions occur. The crystal structure is stabilized by intermolecular N—H...O hydrogen bonds and C—H...O contacts.