Cinnarizinium 3,5-dinitro-salicylate

Abstract

The title compound [systematic name: 4-diphenyl-methyl-1-(3-phenylprop-2- en-1-yl)-piperazin-1-ium 2-carb-oxy-4,6-dinitro-pheno-late], C 26H29N2+·C7H 3N2O7-, is the dinitro-salicylate salt of a tertiary amine. Deprotonation of the carb-oxy-lic acid group occurred on the phenolic hy-droxy group. The diaza-cyclo-hexane ring adopts a chair conformation. Intra-molecular O-H⋯O and inter-molecular C-H⋯O and N-H⋯O hydrogen bonds are observed. The N-H⋯O hydrogen bonds are bifurcated at the H atom and connect the cinnarizinium and 3,5-dinitro- salicylate ions together. Inter-molecular C-H⋯O hydrogen bonds connect the components into layers perpendicular to the crystallographic a axis.