Opipramol dipicrate

In the crystal structure of the title compound, C23H31N3O2+·2C6H2N3O7−, {systematic name: 1-[3-(5H-dibenz[b,f]azepin-5-yl)propyl]-4-(2-hydroxyethyl)piperazine-1,4-diium bis(2,4,6-trinitrophrenolate)} the piperazine group in the opipramol dication is protonated at both N atoms. Each picrate anion interacts with the protonated N atom in the cation through a bifurcated N—H...O hydrogen bond, forming an R21(6) ring motif. In the cation, the dihedral angle between the mean planes of the two benzene rings is 50.81 (8) Å. Intermolecular O—H...O and weak C—H...O hydrogen bonds, and weak π-ring and π–π stacking interactions dominate the crystal packing.

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