A simple hydrated salt with a complex hydrogen-bonding network: tetra­kis­(5-amino-3-carb­oxy-4H-1,2,4-triazol-1-ium) hexa­chlorido­cadmate(II) tetra­hydrate

In a hydrated cadmium chloride salt, the asymmetric unit comprises two N-protonated 5-amino-3-carb­oxy-4H-1,2,4-triazol-1-ium cations, half a [CdCl₆]^4- anion and two mol­ecules of water. Alternating layers of cations and anions are arranged along the [101] direction, forming a three-dimensional supra­molecular network via a combination of hydrogen-bonding and aromatic stacking inter­actions.