Crystal structure of a solvated dinuclear CuII complex derived from 3,3,3′,3′-tetra­ethyl-1,1′-(furan-2,5-di­carbonyl)bis­(thiourea).

Reaction between equimolar amounts of 3,3,3′,3′-tetraethyl-1,1′-(furan-2,5-dicarbonyl)bis(thiourea) (H2L) and CuCl2·2H2O in methanol in the presence of the supporting base Et3N gave rise to a neutral dinuclear complex bis­[μ-3,3,3′,3′-tetraethyl-1,1′-(furan-2,5-dicarbonyl)bis(thioureato)]dicopper(II) di­chloro­methane disolvate, [Cu2(C16H22N4O3S2)2]·2CH2Cl2 or [Cu2(L)2]·2CH2Cl2. The aroylbis(thio­ureas) are doubly deprotonated and the resulting anions {L²–} bond to metal ions through (S,O)-chelating moieties. The copper atoms adopt a virtually cis-square-planar environment. In the crystal, adjacent [Cu2(L)2]·-2CH2Cl2 units are linked into polymeric chains along the a-axis direction by inter­molecular coordinative Cu⋯S inter­actions. The co-crystallized solvent mol­ecules play a vital role in the crystal packing. In particular, weak C—Hfuran⋯Cl and C—Heth­yl⋯Cl contacts consolidate the three-dimensional supra­mol­ecular architecture. [ABSTRACT FROM AUTHOR]