(Z)-1-Di­phenyl­methyl-4-(3-phenyl­prop-2-en­yl)piperazine

In the title compound, C₂₆H₂₈N₂, the piperazine group adopts a chair conformation with the exocyclic N—C bonds in equatorial orientations. The dihedral angle between the geminal benzene rings is 80.46 (12)° and the C=C—C—N torsion angle is 145.9 (2)°. In the crystal, weak C—H...π inter­actions link the mol­ecules into [100] chains.

1-[Bis(4-fluoro­phen­yl)meth­yl]-4-[(2Z)-3-phenyl­prop-2-en-1-yl]piperazine-1,4-diium dichloride hemihydrate

The asymmetric unit of the title monohydrated salt, 2C₂₆H₂₈F₂N₂²⁺·4Cl^−.H₂O, consists of a 1-[bis­(4-fluoro­phen­yl)meth­yl]-4-[(2Z)-3-phenyl­prop-2-en-1-yl]piperazine-1,4-diium cation with a diprotonated piperizine ring in close proximity to two chloride anions and a single water mol­ecule that lies on a twofold rotation axis. In the cation, the piperazine ring adopts a slightly distorted chair conformation. The dihedral angles between the phenyl ring and the 4-fluoro­phenyl rings are 89.3 (9) and 35.0 (5)°. The two fluoro­phenyl rings are inclined at 65.0 (5)° to one another. In the crystal, N—H...Cl hydrogen bonds and weak C—H...Cl inter­molecular inter­actions link the mol­ecules into chains along [010]. In addition, weak C—H...O inter­actions between the piperizine and prop-2-en-1-yl groups with the water mol­ecule, along with weak C—H...Cl inter­actions between the prop-2en-1-yl and methyl groups with the chloride ions, weak C—H...F inter­actions between the two fluoro­phenyl groups and weak O—H...Cl inter­actions between the water mol­ecule and chloride ions form a three-dimensional supra­molecular network.