Hubert Huppertz

1,3-Dimeth­oxy-2-methyl­imidazolium bis­(tri­fluoro­methane­sulfon­yl)imide

The title molxadecular salt, C6H11N2O2+·C2F6NO4S2−, was obtained by the methylxadation of 1-hyxaddroxy-2-methylxadimidazole 3-oxide and subsequent ion metathesis. In the crystal, C—H⋯O=S hydrogen bonds and O⋯π interxadactions are observed.

Synthesis and crystal structures of 2-bromo-1,3-di­methyl­imidazolium iodides

Short C—Br⋯I interactions and C—H⋯I hydrogen bonds are observed in the title compounds.

1-Vinyl-4-imidazoline-2-thione

The title compound, C5H6N2S, was obtained by deprotonation of 1-vinylxadimidazole and subsequent reaction with elemental sulfur. In the crystal, the molecules are linked by N—H⋯S and C—H⋯S hydrogen bonds, and arranged in layers parallel to the ab plane.

2,5-Bis[(3,3,4,4,5,5,6,6,7,7,8,8,8-trideca­fluoro­oct­yl)sulfan­yl]-1,3,4-thia­diazole

The title compound, C18H8F26N2S3, was obtained by double S-perfluoroxadhexylxadethylxadation of dipotassium 1,3,4-thiaxaddiazole-2,5-dixadthiolxadate in methanol. The molxadecule exhibits twofold rotational symmetry, with the S atom lying on the rotation axis. The fluoroxadcarbon chains adopt helical conformations and the F atoms of the two terminal C atoms are disordered over two sets of sites. No directional interxadmolecular interxadactions occur in the crystal.

3,3′-(Hexane-1,6-di­yl)bis­(1-vinyl-4-imidazoline-2-thione)

The title compound, C16H22N4S2, was obtained by the reaction of sulfur with the corresponding quaternary salt in the presence of K2CO3. It crystallizes with two half-molxadecules in the asymmetric unit; the complete molxadecules are generated by inversion symmetry with the central CH2—CH2 bonds of the hexane bridges being located on inversion centres. In each molxadecule, the C6-alkyl chain adopts a typical antixadperiplanar conformation and the two heterocyclic rings are oriented antixadparallel to each other. In the crystal, molxadecules are linked by C—H⋯π interxadactions, forming layers lying parallel to the ac plane.

3-(1H,1H,2H,2H-Perfluoro­oct­yl)-1-vinyl-4-imidazoline-2-thione

The title compound, C13H9F13N2S, was obtained by reaction of sulfur with the corresponding quaternary salt in the presence of K2CO3. The quaternary salt in turn was obtained by alkylxadation of 1-vinylxadimidazole. The crystal structure contains two independent molxadecules with disordered fluoroxadalkyl chains with occupancy ratios of 0.7:0.3 and 0.57:0.43.

1-Allyl-2,3-cyclo­pentenopyridinium chloride

The title compound, C11H14N+·Cl−, was obtained by reaction of 2,3-cycloxadpentenoxadpyridine and allyl chloride. A network of weak C—H⋯Cl hydrogen bonds is observed in the crystal structure.