In the title compound, C₁₄H₁₄Cl₂N₂O, the imidazole ring is almost parallel to the benzene ring, the dihedral angle between them being 7.3 (2)°. In the crystal, there is an inter­molecular C—Clπ inter­action (Clcentroid = 3.36 Å and C—Clcentroid = 89.2°). In addition, a ClCl contact of 3.411 (1) Å and an inter­molecular C—HN hydrogen bond are observed. These inter­actions contribute to the stabilization of the crystal packing.

The title compound, C₆H₁₁N₂O₄PS₃, crystallizes with two independent mol­ecules in the asymmetric unit. The dihedral angles between the thia­diazole ring planes and the PS₂ planes of the phospho­rodithio­ate group are 86.51 (5) and 56.33 (5)° in the two mol­ecules. In the crystal, weak inter­molecular SS [3.570 (8) Å] inter­actions and C—HO and C—HN hydrogen bonds contribute to the stabilization of the packing.

In the title compound {systematic name: 4-chloro-N-[1-(1H-imidazol-1-yl)-2-propoxyethyl­idene]-2-(trifluoro­meth­yl)aniline}, C₁₅H₁₅ClF₃N₃O, the dihedral angle between the aniline and imidazole ring planes is 81.80 (4)°. In the crystal structure, weak inter­molecular C—HX (X = N, O or F) hydrogen bonds and C—Hπ inter­actions help to consolidate the packing.

The title compound, [Ag(NO₃)(C₂₀H₃₀S₂)]_n, was synthesized by the reaction of silver nitrate and 1,4-bis­(cyclo­hexyl­thio­meth­yl)benzene (bctmb) in acetonitrile. The coordination polymer exhibits a two-dimensional layer structure. The layers are wave-like and parallel to the crystallographic ac plane; Ag^I ions are linked by the bctmb ligands and nitrate anions along the crystallographic a and c directions, respectively. In addition, the crystal structure is stabilized by C—HO hydrogen bonds.

In the asymmetric unit of the title compound {systematic name: N′-(2,4-di­methyl­phen­yl)-N-[N-(2,4-di­methyl­phen­yl)carbox­imido­yl]-N-methyl­methanimidamide}, C₁₉H₂₃N₃, which is a formamidine pesticide, there are two independent and conformationally similar mol­ecules, with the dihedral angle between the mean planes of the 2,4-di­methylbenzene rings in each mol­ecule being 41.63 (6) and 42.09 (5)°. The crystal structure is stabilized by a C—HN hydrogen bond, as well as weak inter­molecular C—Hπ and π–π inter­actions [ring centroid separation = 3.7409 (15) Å], giving one-dimensional chains extending down the b direction.

In the title compound, C₁₁H₁₈N₄O₂ (systematic name: 2-dimethyl­amino-5,6-dimethyl­pyrimidin-4-yl N,N-dimethyl­carb­amate), the pyrimidine ring and dimethyl­amino group are almost in the same plane, making a dihedral angle of 1.6 (1)°. The dihedral angle between the mean plane of the pyrimidine ring and that of the dimethyl­carbamate group is 83.42 (5)°. In the crystal structure, inter­molecular C—HO hydrogen bonds contribute to the stabilization of the packing.

The synthesis and crystal structure of {tris­[2-(benzyl­amino)­ethyl]­amine-κ⁴N}silver(I) perchlorate, [Ag(C₂₇H₃₆N₄)]ClO₄ or [Ag(bz₃tren)]ClO₄ {bz₃tren is tris­[2-(benzyl­amino)­ethyl]­amine or N,N′,N′′-tri­benzyl­tris(2-amino­ethyl)­amine} are reported. The Ag atom is coordinated to four N atoms of the tren unit and is located 0.604 (3) Å out of the trigonal plane described by the three secondary amine N atoms, away from the bridgehead N atom. Edge-to-face π–π interactions between the aromatic end groups, and weak interactions between Ag and arene, allow the formation of a pseudo-cage complex.