In the title compound, C(28)H(21)ClN(4)O(4), the benzofuran ring systems make dihedral angles of 7.43 (8) and 30.92 (9)° with the chloro-substituted benzene ring. The dihedral angle between the two benzofuran ring systems is 27.41 (7)°. The two benzofuran rings are connected to the chloro-substituted benzene ring through C-N-N=C and C-N-N=C-C bridges which are nearly planar [maximum deviations ...

In the title compound, C(19)H(15)N(3)O(3), the anilino and benzamide rings make dihedral angles of 10.66 (16) and 50.39 (16)°, respectively, with the nitro-substituted benzene ring. The nitro group is slightly twisted by 11.49 (17)° with respect to the attached benzene ring. There is an intra-molecular N-H⋯O hydrogen bond forming an S(6) ring. In the crystal, weak inter-molecular N-H⋯O and C-H⋯...

In the title moleclue, C(13)H(10)N(4)O(3), the methyl-idene-hydrazide [-C(=O)-N-N=C-] fragment is essentially planar, with a maximum deviation of 0.0228 (7) Å. The mean planes of the benzene and pyridine rings make dihedral angles of 25.44 (6) and 5.47 (7)°, respectively, with the mean plane of the methyl-idene-hydrazide fragment. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds l...

In the mol-ecule of the title compound, C(12)H(16)N(2)O(4), an intra-molecular N-H⋯O hydrogen bond results in the formation of a six-membered ring having an envelope conformation. In the crystal structure, a bifurcated intra/intermolecular N-H⋯(O,O) hydrogen bond generates inversion dimers.

The asymmetric unit of the title compound, C(13)H(10)N(2)O(4), contains two crystallographically independent mol-ecules. The aromatic rings are oriented at dihedral angles of 24.39 (3) and 7.47 (3)° in the two mol-ecules and intra-molecular N-H⋯O and O-H⋯O hydrogen bonds result in the formation of two planar six-membered rings. In the crystal structure, inter-molecular O-H⋯O and C-H⋯O hydrogen ...

The title compound, C(14)H(10)N(4)O(5), has an E conformation with respect to the C=N bond. The dihedral angle between the benzene rings is 2.41 (14)°. In the crystal, mol-ecules are linked through N-H⋯O hydrogen bonds to form chains along the c axis. C-H⋯O inter-actions are also present, linking the chains to form a three-dimensional network.

The title compound, C(13)H(9)N(3)O(5), prepared as a solid derivative of 3-nitro-analine via reaction with 4-nitro-benzoyl chloride, crystallizes in a chiral space group. The mol-ecule is non-planar with a dihedral angle of 26.1 (1)° between the two benzene rings. Both nitro groups are twisted slightly out of the plane of their corresponding benzene rings, making dihedral angles of 10.7 (4) and...

The title compound, C(16)H(11)N(3)O(3), crystallizes with two independent mol-ecules which are almost identical to each other in the asymmetric unit. The dihedral angle between the quinoline ring system and the nitro-benzene ring is 51.04 (9)° in one of the mol-ecules and 48.91 (9)° in the other. The crystal packing is stabilized by C-H⋯O hydrogen bonds and π-π inter-actions, with a centroid-ce...