3,3-Dimethyl-1,1-(propane-1,3-diyl)diimidazol-1-ium tetrabromido- cadmate(II)

The title compound, (C11H18N4)[CdBr 4], was prepared by an anion exchange. The dihedral angle between the two planar imidazolium rings in the cation is 74.4 (4)°. The crystal packing is stabilized by weak inter-molecular C-H⋯Br hydrogen bonds between the cation and the tetrahedral anion, building up a three-dimensionnal network.