title: Bis(1-methyl-piperazine-1,4-diium) tetra-chloridocuprate(II).
abstract: The title compound, (C(5)H(14)N(2))[CuCl(4)], was synthesized by hydro-thermal reaction of CuCl(2) with 1-methyl-piperazine 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 inter-molecular N-H⋯Cl hydrogen bonds link the anion and cation units into an infinite two-dimensional network parallel to the ab plane.
authors.affiliation: Department of Chemical & Environmental Engineering, Anyang Institute of Technology, Anyang 455000, People's Republic of China.
authors.forename: Cong-Hu
authors.initials: CH
authors.lastname: Peng