(Z)-3-Chloro-N-[(Z)-3-(3-chloro-2-methyl­phenyl­imino)­butan-2-yl­idene]-2-methyl­aniline

In the title compound, C₁₈H₁₈Cl₂N₂, the complete molecule is generated by the application of C₂ symmetry. The C=N bond has an E configuration. The dihedral angle between the benzene ring and the 1,4-diaza­butadiene plane is 66.81 (9)°.

Bis(1,10-phenanthroline-5,6-dione-κ²N,N′)silver(I) 2-hy­droxy-3,5-dinitro­benzoate

In the cation of the title salt, [Ag(C₁₂H₆N₂O₂)₂](C₇H₃N₂O₇), the Ag^I atom is coordinated in a distorted tetra­hedral geometry by four N atoms from two 1,10-phenanthroline-5,6-dione ligands, while the 3,5-dinitro­salicylate anion has only a short contact [2.847 (6) Å] between one of its O atoms and the Ag^I atom. The dihedral angle between the two 1,10-phenanthroline-5,6-dione ligands is 58.4 (1)°. There is an intra­molecular O—H...O hydrogen bond in the 3,5-dinitro­salicylate anion.

2,4,5-Tris(pyridin-4-yl)-1H-imidazole monohydrate

In the crystal structure of the title compound, C₁₈H₁₃N₅·H₂O, adjacent mol­ecules are linked by O—H...N and N—H...O hydrogen bonds, generating a chain propagating along [001].

2-Hy­droxy-N,N,N-trimethyl-3-tetra­decyl­oxypropan-1-aminium bromide

In the crystal structure of the title compound, C₂₀H₄₄NO₂⁺·Br⁻, the cation and anion are connected via an O—H...Br hydrogen bond, forming an ionic pair. The cation is disordered over two conformations related by a mirror plane, and the anion is situated on a mirror plane so that the asymmetric unit contains half of the ionic pair. The long alkyl chain in the cation adopts an all-trans conformation. The crystal packing exhibits weak inter­molecular C—H...O inter­actions.