In the title compound, C(16)H(11)N(3)O(3), the amide group is twisted away from the quinoline ring system and nitro-benzene ring by 8.02 (1)° and 54.92 (1)°, respectively. The crystal packing is stabilized by inter-molecular C-H⋯O hydrogen bonds, and π-π inter-actions between the quinoline ring systems of inversion-related mol-ecules, with a centroid-centroid distance of 3.4802 (13) Å.

There is a twist in the title mol-ecule, C(15)H(11)ClN(2), as seen in the dihedral angle of 18.85 (9)° between the quinoline and benzene rings. A short C-H⋯N contact arises from this conformation and the amine H and quinoline N atoms are directed towards opposite sides of the mol-ecule. In the crystal, supra-molecular layers in the ab plane are mediated by C-H⋯π inter-actions.

Synthesis of 5,7-phenylquinoline from the Skraup reaction of m-terphenyl-amine and glycerol in the presence of acid is reported. Further reaction of 5,7-diphenyl-quinoline with phenyl lithium prepared in situ led to the formation of 2,5,7-triphenyl-quinoline. All of the products and their intermediates were characterized and the UV-Vis and photo-luminescence (PL) spectra of m-terphenylamine, 5,...

In the title compound, C(16)H(13)NO(2), the quinoline system is approximately planar with a maximum deviation from the least-squares plane of 0.059 (1) Å for the N atom. The phenyl ring is rotated by 62.16 (4)° with respect to the plane of the quinoline system. In the crystal, O-H⋯O hydrogen bonds link mol-ecules into infinite chains running along the b-axis direction.

In the title compound, C(18)H(14)N(2)O(3), the quinoline ring system is almost planar [maximum deviation = 0.013 (2) Å] and forms a dihedral angle of 60.36 (7)° with the benzene ring. The nitro group is slightly twisted from the attached quinoline ring system, forming a dihedral angle of 9.06 (19)°. In the crystal packing, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains pro...

In the title compound, C(16)H(13)ClN(2)O, the quinoline ring system is essentially planar, with a maximum deviation of 0.021 (2) Å. The pyridone ring is oriented at a dihedral angle of 85.93 (6)° with respect to the quinoline ring system. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules along the b axis. Weak π-π stacking inter-actions [centroid-centroid distan...