Crystal structure of 1,3-di-cyclo-hexyl-4,5-dimethyl-1H-imidazol-3-ium-2-carbodi-thio-ate chloro-form monosolvate.

The title compound, C18H28N2S2·CHCl3, crystallizes as a zwitterion. The C—S bonds are almost equivalent, with lengths of 1.666 (3) and 1.657 (3) A. The S—C—S bond angle is expanded to 129.54 (16)° and the N—C—N angle is reduced to the tetra­hedal value of 108.8 (2)°. In the crystal, adjacent mol­ecules are linked via C—H⋯S hydrogen bonds, forming chains along [100]. The chloro­form solvent mol­ecule, which is disordered over two positions [occupancy ratio = 0.51 (2):0.49 (2)], is linked to the chain by bifurcated C—H⋯(S,S) hydrogen bonds.