Bis(1,4-diazo-niabi-cyclo-[2.2.2]octa-ne) di-μ-chlorido-bis-[tetra-chlorido-anti-monate(III)] dihydrate.

The title salt, (C6H14N2)2[Sb2Cl10]·2H2O, was obtained by slow evaporation of an acidic solution of 1,4-di-aza-bicyclo-[2.2.2]octane and SbCl3. The crystal structure consists of (C6H14N2)(2+) cations, [Sb2Cl10](4-) double octa-hedra and lattice water mol-ecules. All mol-ecular components are situated on special positions. The cation and the lattice water mol-ecule exhibit mirror symmetry, whereas the anion has site symmetry 2/m. The cations, anions and water mol-ecules are alternately arranged into columns along [010]. Individual columns are joined into layers extending along (001). Intra-layer N-H⋯O and inter-layer N-H⋯Cl hydrogen-bonding inter-actions lead to the formation of a three-dimensional network.