Bis(2-amino-6-methyl­pyridinium) tetra­chloridocuprate(II)

The title compound, (C6H9N2)2[CuCl4], contains a distorted tetra­hedral [CuCl4]2− anion and two protonated amino­pyridinium cations. The geometries of the protonated amino­pyridinium cations reveal amine–imine tautomerism. The crystal packing is influenced by N—H⋯Cl and C—H⋯Cl hydrogen bonds and π–π stacking inter­actions [centroid–centroid distances = 3.635 (4) and 3.642 (4)°].