Aqua-di-μ2-chloro-bis(diethylenetriamine)dicopper(II) dichloride

Abstract

Reaction of CuCl2(H2O)2 with diethyl­enetri­amine (henceforth dien) in a 1:1 ratio has led to the formation of a non-centrosymmetric di-μ-chloro bibridged binuclear CuII species in which a water mol­ecule is coordinated axially to one of the CuII ions. [Cu2Cl2(C4H13N3)2(H2O)] contains dinuclear [(dien)2Cu2Cl2(H2O)]2+ cations and chloride ions. Both CuII ions in the dimer have a primary coordination sphere that is approximately planar, consisting of one dien mol­ecule and one chloride ion. These monomeric units are linked via semicoordinate Cu—Cl bonds to form dinuclear units. One CuII ion has a 4+1 coordination geometry while the second expands to a 4+2 geometry by the incorporation of a water mol­ecule. The dinuclear cation has crystallographic reflection symmetry, the mirror plane containing the central Cu2Cl2 unit and the central N atom of each dien ligand.