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In the cinnarizinium dication of the title compound {systematic name: 1-diphenyl­methyl-4-[(2E)-3-phenyl­prop-2-en-1-yl]piperazine-1,4-diium bis­(2,4,6-trinitro­phenolate)}, C26H30N2 2+·2C6H2N3O7 −, the piperazine group is protonated at both N atoms and adopts a slightly distorted chair conformation. Strong N—H⋯Ohy­droxy cation–anion hydrogen bonds link the dication and two anions. In the cation, the (2E)-3-phenyl­prop-2-en-1-yl fragment is disordered over two positions in a ratio of 0.586 (4): 0.414 (4). Two nitro groups in one anion and three in the other one demonstrate rotational disorder. The crystal packing is stabilized by weak inter­molecular π–π [centroid–centroid distances = 3.844 (7), 3.677 (9), 3.825 (5), 3.634 (2) and 3.729 (7) Å], C—H⋯π and C—H⋯O inter­actions.

In the title compound (systematic name: 2-{4-[3-(5H-dibenz[b,f]azepin-5-yl)prop­yl]piperazin-1-yl}ethanol), C23H29N3O, the 5H-dibenz[b,f]azepine and piperazine rings adopt boat and chair conformations, respectively, and the overall shape of the fused ring part of the molecule is a butterfly. In the crystal, O—H⋯N and C—H⋯O hydrogen bonds link the mol­ecules into a layer parallel to the bc plane.

In the title molecular salt [systematic name: 3-(5H-dibenzo[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-1-propanaminium 2-hydroxybenzoate], C20H22N+·C7H5O3−, the benzene rings of the cyclobenzaprinium cation are inclined with a dihedral angle of 61.66 (7)°. An intramolecular O—H...O hydrogen bond occurs within the salicylate anion, generating an S(6) ring. In the crystal, the cation and anion are linked by an N—H...O interaction

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