Bis(isoquinolin-2-ium) tetra­chlorido­zincate dihydrate

In the title compound, (C₉H₈N)₂[ZnCl₄]·2H₂O, the tetra­chlorido­zincate ion is located on a twofold rotation axis with the Zn atom on a special position. The crystal packing is stabilized by N—H...O and O—H...Cl inter­actions.