(2E,4E)-1-(6-Chloro-2-methyl-4-phenyl-3-quinol-yl)-5-phenyl-penta-2,4-dien-1-one.

In the title compound, C(27)H(20)ClNO, the quinoline ring forms a dihedral angle of 62.53 (5)° with the substituent benzene ring. In the crystal, inter-molecular C-H⋯Cl inter-actions link the mol-ecules into chains along the b axis. Inter-molecular C-H⋯N and C-H⋯O hydrogen bonds further consolidate the structure into a three-dimensional network. The unit cell contains four solvent-accessible voids, each with a volume of 35 Å(3), but no significant electron density was found in them.

(2E)-1-(6-Chloro-2-methyl-4-phenyl-quinolin-3-yl)-3-phenyl-prop-2-en-1-one.

In the title compound, C(25)H(18)ClNO, the conformation about the C=C double bond is E. Significant twists are evident in the mol-ecule, with the benzene ring forming a dihedral angle of 53.92 (11)° with the quinolinyl residue. Further, the chalcone residue is approximately perpendicular to the quinolinyl residue [C(q)-C(q)-C(c)-O(c) torsion angle = -104.5 (3)°, where q = quinolinyl and c = chalcone]. In the crystal, the presence of C-H⋯O and C-H⋯π inter-actions leads to supra-molecular layers lying parallel to (02).