1-(10H-Phenothia-zin-2-yl)ethanone.

In the title compound, C(14)H(11)NOS, the thia-zine ring adopts a slightly distorted boat conformation. The dihedral angle between the mean planes of the two benzene rings is 20.2 (9)°.

8-Bromo-1,3-diphenyl-2,3-dihydro-1H-naphtho-[1,2-e][1,3]oxazine.

The title compound, C(24)H(18)BrNO, consists of an envelope-configured oxazine ring with a fused 8-bromo-1,3-diphenyl group and two bonded phenyl rings. The dihedral angles between the mean planes of the 8-bromo-1,3-diphenyl and the phenyl rings are 54.5 (6) and 87.

4-(4-Chloro-phen-yl)-4-hy-droxy-piperidinium maleate maleic acid solvate.

In the cation of the title compound, C(11)H(15)ClNO(+)·C(4)H(3)O(4) (-)·C(4)H(4)O(4), the dihedral angle between the mean planes of the chlorine-substituted aromatic ring and the 4-hy-droxy-piperidinium ring (C-C-C-C-C-N) is 61.9 (8)°. Intra-molecular O-H⋯O and inter-molecular O-H⋯O and N-H⋯O hydrogen bonding, as well as weak π-stacking inter-actions [centroid-centroid distance = 3.

(E)-1-(4-Bromo-phen-yl)-3-(2-meth-oxy-phen-yl)prop-2-en-1-one.

In the title compound, C(16)H(13)BrO(2), the dihedral angle between the mean planes of the meth-oxy- and bromo-substituted benzene rings is 24.6 (1)°. The angles between the mean plane of the prop-2-en-1-one group and the 4-bromo-phenyl and 2-meth-oxy-phenyl ring planes are 18.

Opipramol dipicrate.

In the crystal structure of the title compound, C(23)H(31)N(3)O(2+)·2C(6)H(2)N(3)O(7) (-), {systematic name: 1-[3-(5H-dibenz[b,f]azepin-5-yl)prop-yl]-4-(2-hy-droxy-eth-yl)piperazine-1,4-diium bis-(2,4,6-trinitro-phrenolate)} the piperazine group in the opipramol dication is protonated at both N atoms. Each picrate anion inter-acts with the protonated N atom in the cation through a bifurcated N-H⋯O hydrogen bond, forming an R(2) (1)(6) ring motif. In the cation, the dihedral angle between the mean planes of the two benzene rings is 50.

1-[3,5-Bis(4-chloro-phen-yl)-4,5-dihydro-1H-pyrazol-1-yl]ethanone.

In the title compound, C(17)H(14)Cl(2)N(2)O, the dihedral angles between the pyrazole ring and the mean planes of the benzene and chloro-substituted benzene rings are 75.97 (1) and 16.63 (1)° respectively.

(2E)-1-(2,5-Dichloro-3-thien-yl)-3-(6-meth-oxy-2-naphth-yl)prop-2-en-1-one.

In the title compound, C(18)H(12)Cl(2)O(2)S, the dihedral angle between the thio-phene ring and the naphthalene ring system is 2.13 (4)°. In the crystal, pairs of weak inter-molecular C-H⋯O hydrogen bonds form centrosymmetric dimers.

N-[(2-Chloro-3-quinol-yl)meth-yl]-4-fluoro-aniline.

In the title compound, C(16)H(12)ClFN(2), the dihedral angle between the quinoline ring system and the flourophenyl ring is 86.70 (4)°. In the crystal, mol-ecules are linked into chains along the a axis by N-H⋯N hydrogen bonds.

2-(4-Chloro-phen-yl)-6-meth-oxy-chroman-4-one.

In the title mol-ecule, C(16)H(13)Cl O(3), the two aromatic rings form a dihedral angle of 65.3 (1)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers, which are further packed into columns propagating in [100] by weak C-H⋯π inter-actions.