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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 CuCl42- 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.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks Chloropyramine_Dication, I

fcf

Structure factor file (CIF format)
Contains datablock p10

CCDC reference: 128738

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