Acta Cryst. (2001). E57, m605-m606  [ doi:10.1107/S1600536801019808 ]

Aqua-di-₂-chloro-bis(diethylenetriamine)dicopper(II) dichloride

R. D. Willett

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--chloro bibridged binuclear Cu^II species in which a water molecule is coordinated axially to one of the Cu^II ions. [Cu₂Cl₂(C₄H₁₃N₃)₂(H₂O)] contains dinuclear [(dien)₂Cu₂Cl₂(H₂O)]²⁺ cations and chloride ions. Both Cu^II 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 Cu^II 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.

Online 30 November 2001

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