The title compound, (C5H14N2)[CuCl4], was synthesized by hydrothermal reaction of CuCl2 with 1-methylpiperazine in an HCl/water solution. Both amine N atoms are protonated. The piperazine ring adopts a chair conformation. The Cu—Cl distances in the tetrahedral anion are in the range 2.2360 (7)–2.2732 (7) Å. In the crystal, moderately strong and weak intermolecular N—H⋯Cl hydrogen bonds link the anion and cation units into an infinite two-dimensional network parallel to the ab plane
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.