Bis(1,4-diazo­niabi­cyclo­[2.2.2]octa­ne) di-μ-chlorido-bis­[tetra­chlorido­anti­monate(III)] dihydrate

The title salt, (C(6)H(14)N(2))(2)[Sb(2)Cl(10)]·2H(2)O, was obtained by slow evaporation of an acidic solution of 1,4-di­aza­bicyclo­[2.2.2]octane and SbCl(3). The crystal structure consists of (C(6)H(14)N(2))(2+) cations, [Sb(2)Cl(10)](4−) double octa­hedra and lattice water mol­ecules. All mol­ecular components are situated on special positions. The cation and the lattice water mol­ecule exhibit mirror symmetry, whereas the anion has site symmetry 2/m. The cations, anions and water mol­ecules are alternately arranged into columns along [010]. Individual columns are joined into layers extending along (001). Intra­layer N—H⋯O and inter­layer N—H⋯Cl hydrogen-bonding inter­actions lead to the formation of a three-dimensional network.