Bis(18-crown-6)-1κ6O,3κ6O-bis(μ-1,1-dicyanoethylene-2,2-dithiolato)-1:2κ3N:S,S′;2:3κ3S,S′:N-dipotassium(I)copper(II) 1,2-dichloroethane solvate

Abstract

In the title complex, [CuK2(C4N2S2)2(C12H24O6)2]·C2H4Cl2, the CuII atom lies on an inversion centre and the 1,2-dichloro­ethane solvate lies on another inversion centre. The asymmetric unit therefore comprises one [K(18-crown-6)]+ complex cation, one-half of the [Cu(i-mnt)2]2− anion (i-mnt is 1,1-dicyano­ethyl­ene-2,2-dithiol­ate) and one-half of the dichloro­ethane solvent molecule. Each KI ion binds to the six ether O atoms and N atoms from two i-mnt2− ligands. The Cu atoms adopt a distorted square-planar coordination geometry. K—N bonds from each of the four cyano groups link the cations and anions into planar sheets along the diagonal of the ac plane and these sheets pack in layers in the bc plane.