Poly[μ₂-aqua-μ₄-[1-(4-chloro­phen­yl)-4,4,4-tri­fluoro­butane-1,3-dionato]-potassium]

In the title compound, [K(C₁₀H₅ClO₂F₃)(H₂O)]_n, the two independent K⁺ ions are located on a twofold rotation axis. For each of the cations, the distorted cubic coordination environment is defined by two F and four O atoms of symmetry-related 1,4-chloro­phenyl-4,4,4-tri­fluoro­butane-1,3-dionate anions and by two O atoms of water mol­ecules. The μ₄-bridging character of the anion and the μ₂-bridging of the water mol­ecule lead to the formation of layers parallel to (100). The coordinating water mol­ecules are also involved in O—H...O hydrogen bonds that reinforce the mol­ecular cohesion within the layers, which are stacked along [100]. The β-diketonate anion is not planar, with an angle of 31.78 (10)° between the mean planes of the diketonate group and the chloro­phenyl ring.

1-[(E)-Anthracen-9-yl­methyl­idene]-2-(2,4-di­nitro­phen­yl)hydrazine

In the title Schiff base, C₂₁H₁₄N₄O₄, the dihedral angle between the two nitro groups and the central benzene ring are 83.6 (5) and 2.6 (6)°. The anthracene ring system and the benzene ring make a dihedral angle of 0.7 (2)°. Intra­molecular N—H...O and C—H...N hydrogen bonds occur. In the crystal, C—H...O hydrogen bonds link the mol­ecules, forming chains along the b-axis direction.

4,7-Diphenyl-1,10-phenanthroline methanol hemisolvate

The asymmetric unit of the title compound, C₂₄H₁₆N₂·0.5CH₃OH, is comprised of two independent bathophenanthroline mol­ecules (systematic name: 4,7-diphenyl-1,10-phenanthroline) and one methanol mol­ecule. The bathophenanthroline mol­ecules are not planar as there is a considerable rotation of all terminal phenyl rings with respect to the central phenanthroline units [dihedral angles in the range 52.21 (12)–62.14 (10)°]. In addition, a non-negligible torsion is apparent in one of the phenanthroline units: the angle between the mean planes of the two pyridine rings is 14.84 (13)°. The methanol solvent mol­ecule is linked to both N atoms of a bathophenanthroline mol­ecule through a bifurcated O—H...(N,N) hydrogen bond.