Bis{3-amino-1-carbamo­thioyl-5-[(2-{[(5-methyl-1H-imidazol-3-ium-4-yl)meth­yl]sulfan­yl}eth­yl)amino]-1H-1,2,4-triazol-4-ium} hexa­chloridobismuthate(III) nitrate dihydrate

The asymmetric unit of the title hydrated salt, (C(10)H(18)N(8)S(2))(2)[BiCl(6)]NO(3)·2H(2)O, contains two independent 3-amino-1-carbamo­thioyl-5-[(2-{[(5-methyl-1H-imidazol-3-ium-4-yl)meth­yl]sulfan­yl}eth­yl)amino]-1H-1,2,4-triazol-4-ium cations, one hexa­chloridobismuthate anion, one nitrate anion and two solvent water mol­ecules. The dihedral angles between the imidazole and triazole rings in the cations are 44.7 (3) and 89.4 (3)°. The Bi(III) ion is coordinated by six chloride ligands in a slightly distorted octa­hedral geometry. In each cation, an intra­molecular N—H⋯S hydrogen bond is observed. In the crystal, N—H⋯Cl, N—H⋯S, N—H⋯O, O—H⋯Cl, O—H⋯S and O—H⋯O hydrogen bonds connect the components into a three-dimensional network. In addtion, π–π stacking inter­actions between inversion-related triazole rings are observed, with a centroid–centroid distance of 3.322 (3) Å