title: Bis(1-methyl-piperazine-1,4-diium) tetra-bromidocuprate(II).
abstract: The title compound, (C(5)H(14)N(2))[CuBr(4)], was synthesized by hydro-thermal reaction of CuBr(2) with 1-methyl-piperazine in an HBr/water solution. Both amine N atoms are protonated. The Cu-Br distances in the tetrahedral anion are in the range 2.3809 (11)-2.4131 (11) Å. In the crystal, moderately strong and weak inter-molecular N-H⋯Br 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