Chloropyramine tetrachlorocuprate(II)

Article abstract of DOI:10.1107/S0108270197002060

The crystal structure of N-(4-chlorobenzyl)-N′,N′-dimethyl-N-(2-pyridinio)-1,2- ethanediammonium tetrachlorocopper(II), (C₁₆H₂₂ClN₃)[CuCl₄], contains the dication of chloropyramine, a potent anti-allergic agent effective on H₁-type receptors. The CuCl₄^2- anion exhibits a flattened-tetrahedral geometry. The ammonium H atom is weakly bonded to two Cl atoms of the anion and the pyridyl N atom is involved in a short hydrogen bond to a Cl atom of the anion.