90 research outputs found
Melitracenium chloride
In the title compound [systematic name: 3-(10,10-dimethylanthracen-9-ylidene)-N,N,N-trimethylpropanaminium chloride], C21H26N+·Cl−, the cyclohexane ring adopts a chair conformation. The dihedral angle between the terminal benzene rings is 40.43 (12)°. In the crystal, ions are linked through intermolecular N—H⋯Cl and C—H⋯Cl hydrogen bonds, forming supramolecular layers parallel to the bc plane
1-(2-Hydroxyethyl)-4-[3-(2-trifluoromethyl-9H-thioxanthen-9-ylidene)propyl]piperazine-1,4-diium dichloride: the dihydrochloride salt of flupentixol
In the title compound, C23H27F3N2OS+·2Cl−, the piperazinediium ring adopts a chair conformation. The dihedral angle between the two outer aromatic rings of the 9H-thioxanthene unit is 40.35 (18)°. The F atoms in the trifluoromethyl group are disordered over two sets of sites with occupancies of 0.803 (6) and 0.197 (6). In the crystal, molecules are connected by N—H⋯Cl, O—H⋯Cl C—H⋯O and C—H⋯Cl hydrogen bonds, forming chains propagating along [001]. There are also C—H⋯π interactions present in the crystal structure
Methyl 2-(4-hydroxybenzoyl)benzoate
In the title compound, C15H12O4, the dihedral angle between the benzene rings is 64.0 (6)°. In the crystal, molecules are linked by O—H⋯O hydrogen bonds, forming C(8) chains propagating in [10] and the packing is reinforced by weak C—H⋯O interactions
Opipramolium fumarate
In the crystal structure of the title salt {systematic name: 4-[3-(5H-dibenz[b,f]azepin-5-yl)propyl]-1-(2-hydroxyethyl)piperazin-1-ium (2Z)-3-carboxyprop-2-enoate}, C23H30N3O+·C4H3O4
−, the piperazine group in the opipramol cation is protonated at only one of the N atoms. In the cation, the dihedral angle between the two benzene rings is 53.5 (6)°. An extensive array of intermolecular O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds and weak intermolecular N—H⋯O, C—H⋯O and C—H⋯π interactions dominate the crystal packing
2,2-Diphenylacetamide
In the title compound, C14H13NO, which has two molecules in the asymmetric unit, the dihedral angles between the mean planes of the benzene rings are 84.6 (7) and 85.0 (6)°. N—H⋯O hydrogen bonds [forming R
2
2(8) ring motifs] and C—H⋯O hydrogen bonds dominate the crystal packing, forming zigzag chains parallel to the a axis. In addition, weak intermolecular C—H⋯π interactions are observed
9-[3-(Dimethylamino)propyl]-2-trifluoromethyl-9H-thioxanthen-9-ol
In the title compound, C19H20F3NOS, the dihedral angle between the mean planes of the two benzene rings attached to the thioxanthene ring is 41.8 (7)°; the latter has a slightly distorted boat conformation. The F atoms are disordered over three sets of sites [occupancy ratio = 0.564 (10):0.287 (10):0.148 (5)] and the methyl groups are disordered over two sets of sites [occupancy ratio = 0.72 (4):0.28 (4)]. The crystal packing is stabilized by O—H⋯N and C—H⋯S hydrogen bonds and weak C—H⋯Cg interactions
2,2-Diphenyl-4-(piperidin-1-yl)butanamide
In the title compound, C21H26N2O, the dihedral angle between the mean planes of the two benzene rings is 81.1 (9)°. The piperidine ring is in a chair conformation. The crystal packing is stabilized by N—H⋯N and N—H⋯O hydrogen bonds and weak intermolecular C—H⋯O interactions
Oxomemazine hydrochloride
In the title compound [systematic name: 3-(5,5-dioxophenothiazin-10-yl)-N,N,2-trimethylpropanaminium chloride], C18H23N2O2S+·Cl−, the dihedral angle between the two outer aromatic rings of the phenothiazine unit is 30.5 (2)°. In the crystal, the components are linked by N—H⋯Cl and C—H⋯Cl hydrogen bonds and C—H⋯π interactions
Cinnarizinium dipicrate
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
1-(2-Hydroxyethyl)-4-{3-[(E)-2-(trifluoromethyl)-9H-thioxanthen-9-ylidene]propyl}piperazine-1,4-diium bis(3-carboxyprop-2-enoate)
In the title salt, C23H27F3N2OS+·2C4H3O4
−, a non-merohedral twin [ratio of the twin components = 0.402 (1):0.598 (1)], the –CF3 group is disordered over two sets of sites with occupancy factors in the ratio 0.873 (2):0.127 (2). The dihedral angle between the two outer aromatic rings of the 9H-thioxanthene unit, whose thiopyran ring has a screw-boat conformation, is 33.01 (9)°. The diprotonated piperazine ring adopts a chair conformation. In the crystal, intermolecular O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds between neighboring molecules form zigzag chains along the a axis and contribute to the stabilization of the packing
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