2-Chloro-1-[4-(2,4-difluoro­benz­yl)piperazin-1-yl]ethanone

In the title mol­ecule, C₁₃H₁₅ClF₂N₂O, the piperazine ring is in a chair conformation with the 2,4-difluoro­benzyl and chloro­acetyl substituents in equatorial positions.

1H-1,2,4-Triazol-4-ium (3,4-dichloro­phen­yl)methane­sulfonate

In the title molecular salt, C₂H₄N₃⁺·C₇H₅Cl₂O₃S⁻, C—C—S angle [112.25 (18)°] deviates slightly from that expected for ideal sp³-hybridization geometry. In the crystal, the components are linked by N—H...O and bifurcated N—H...(O,O) hydrogen bonds into chains parallel to [110].

9-(4-Bromo­but­yl)-9H-carbazole

In the title compound, C₁₆H₁₆BrN, the bromo­butyl group lies on one side of the carbazole ring plane and has a zigzag shape. The dihedral angle between the two benzene rings is 0.55°. In the crystal, mol­ecules are connected by van der Waals inter­actions.

(Z)-1-(2,4-Difluoro­phen­yl)-3-(4-fluoro­phen­yl)-2-(1H-1,2,4-triazol-1-yl)prop-2-en-1-one

In the title mol­ecule, C₁₇H₁₀F₃N₃O, the C=C bond connecting the triazole ring and 4-fluoro­phenyl groups adopts a Z conformation. The triazole ring forms dihedral angles of 15.3 (1) and 63.5 (1)°, with the 2,4-difluoro-substituted and 4-fluoro-substituted benzene rings, respectively. The dihedral angle between the two benzene rings is 51.8 (1)°.

(Z)-1,3-Bis(4-chloro­phen­yl)-2-(1H-1,2,4-triazol-1-yl)prop-2-en-1-one

In the title mol­ecule, C₁₇H₁₁Cl₂N₃O, the C=C bond connecting the triazole and 4-chloro­phenyl groups adopts a Z geometry. The dihedral angles formed by the triazole ring and the 4-chloro substituted benzene rings are 67.3 (1) and 59.1 (1)°. The dihedral angle between the two benzene rings is 73.5 (1)°.

6-Bromo-2-(diprop-2-ynyl­amino)-1H-benzo[de]isoquinoline-1,3(2H)-dione

The asymmetric unit of the title compound, C₁₈H₁₁BrN₂O₂, contains two independent mol­ecules in which the prop-2-ynyl­amino groups have different mutual orientations. In one mol­ecule, the Br atom is disordered over two positions, with refined occupancies of 0.742 (2) and 0.258 (2).

N-[4-(Azetidin-1-ylsulfon­yl)phen­yl]-N-(2,4-difluoro­benz­yl)acetamide

In the title mol­ecule, C₁₈H₁₈F₂N₂O₃S, the dihedral angle between the benzene rings is 79.40 (11)°. The 2,4-difluoro­benzyl and azetidine fragments adopt a trans arrangement relative to the central benzene ring. In the crystal, weak C—H...O hydrogen bonds connect mol­ecules into a two-dimensional network parallel to (001).