Crystal structure and Hirshfeld surface analysis of 3-octyl-4-oxo-2,6-bis(3,4,5-trimethoxyphenyl)piperidinium chloride

The title compound, C31H46NO7+·Cl−, was synthesized by a one-pot Mannich condensation reaction. In the molecule, the piperidinone ring adopts a chair conformation, and the trimethoxy-substituted benzene rings and octyl chain are arranged equatorially. In the crystal, centrosymmetric dimers are linked into layers parallel to (011) by N—H...Cl and C—H...Cl hydrogen bonds. A Hirshfeld surface analysis indicates that the most important contributions for the crystal packing are O...H (20.5%) interactions followed by C...H (7.8%), Cl...H (5.5%), C...C (1.2%), C...O (0.5%) and Cl...O (0.4%) interactions