N-Chloromethyl-4-(dimethylamino)-N,N-dimethylanilinium chloride

4-Carbethoxy-1-[4-(N,N-dimethylamino)benzoyl]thiosemicarbazide

The mol-ecular structure of the title compound, C(13)H(18)N(4)O(3)S, (systematic name: ethyl N-{2-[4-(dimethyl-amino)benzo-yl]hydrazinethio-carbon-yl}carbamate) is stabilized by intra-molecular N-H⋯O=C hydrogen bonding arranged in an S(6) graph-set motif. In the crystal, inversion dimers connected via inter-molecular N-H⋯S=C hydrogen bonds [R(2) (2)(8) graph-set motif] form sheets parallel to t...

N-Methyl-4-nitro­anilinium chloride

The asymmetric unit of the title salt, C(7)H(9)N(2)O(2) (+)·Cl(-), contains two independent cations and anions. In the crystal, each N-methyl-4-nitro-anilinium cation is linked to two Cl(-) anions via N-H⋯Cl hydrogen bonds. π-π stacking is observed between the benzene rings of adjacent cations [centroid-to-centroid distances = 3.7684 (14) and 3.7917 (7) Å].

Spectroscopic THz imaging using organic DSTMS (4- N,N-dimethylamino-4’-N’-methyl-stilbazolium 2,4,6- trimethylbenzenesulfonate) crystals

Application of terahertz (THz) electromagnetic waves offers several opportunities for quality inspection in various industries. The THz waves penetrate many kinds of materials such as pharmaceutical coating, paper, plastic, ceramic, cardboard, wood, clothing, etc. We investigated possibilities of applying a THz imaging system in transmission geometry using the organic DSTMS crystals as a THz ge...

N-[2-(4-Bromo­benzo­yl)eth­yl]isopropyl­aminium chloride

The crystal structure of the title compound, C(12)H(17)BrNO(+)·Cl(-), is stabilized by N-H⋯Cl and C-H⋯O hydrogen bonds, forming a three-dimensional network. The inter-actions framework is completed by C-H⋯π contacts between a methyl-ene group and the benzene ring of a symmetry-related mol-ecule.

Mesomorphic Behaviour of N-4-hexadecylpyridinium Chloride