Crystal structure, DFT study and Hirshfeld surface analysis of ethyl 6-chloro-2-ethoxyquinoline-4-carboxylate

In the title quinoline derivative, C₁₄ H 14 ClNO₃, there is an intramolecular C - H...O hydrogen bond forming an S(6) graph-set motif. The molecule is essentially planar with the mean plane of the ethyl acetate group making a dihedral angle of 5.02 (3)° with the ethyl 6-chloro-2-ethoxyquinoline mean plane. In the crystal, offset π-π interactions with a centroid-to-centroid distance oF₃.4731 (14) Å link inversion-related molecules into columns along the c-axis direction. Hirshfeld surface analysis indicates that H...H contacts make the largest contribution (50.8%) to the Hirshfeld surface.