Cinnarizinium picrate

In the title salt {systematic name: 4-diphenyl­methyl-1-[(E)-3-phenyl­prop-2-en-1-yl]piperazin-1-ium 2,4,6-trinitro­pheno­late), C₂₆H₂₉N₂⁺·C₆H₂N₃O₇⁻, the cinnarizinium cation is protonated at the piperazine N atom connected to the styrenylmethyl group; the piperazine ring adopts a distorted chair conformaiton. In the crystal, bifurcated N—H...(O,O) hydrogen bonds link the components into two-ion aggregates.

4-[(4-Chloro­phen­yl)(phen­yl)­meth­yl]­piperazin-1-ium picrate monohydrate

The asymmetric unit of the title compound, C₁₇H₂₀ClN₂⁺·C₆H₂N₃O₇⁻·H₂O, contains a piperazin-1-ium cation, a picrate anion and one solvent water mol­ecule. The piperazene ring is protonated at one N atom and adopts a highly distorted chair conformation with the chloro­pheny(phen­yl)methyl substituent on the second N atom in an equatorial position. The crystal structure is stabilized by O—H...O, N—H...O and C—H...O hydrogen bonds.

1-[(4-Chloro­phen­yl)(phen­yl)meth­yl]piperazine-1,4-diium bis­(trichloro­acetate)–trichloro­acetic acid (1/1)

In the title salt adduct, C₁₇H₂₁ClN₂²⁺·2C₂Cl₃O₂⁻·C₂HCl₃O₂, the Cl atom of the dication is disordered over two positions in a 0.915 (3):0.085 (3) ratio. The Cl atoms in the trichloroacetate anions and trichloroacetic acid molecule are also disordered, with refined site-occupation factors of 0.59 (3):0.41 (3), 0.503 (12):0.417 (12) and 0.653 (12):0.347 (12). The piperazine ring adopts a chair conformation, with puckering parameters Q_T = 0.587 (3) Å, θ = 2.6 (2) and Φ 334 (6)°. In the crystal, neighbouring mol­ecules are linked by N—H...O, O—H...O, N—H...Cl, C—H...O and C—H...Cl hydrogen bonds, forming a three-dimensional network.