Tetra­Kis(Μ-3-Chloro­Benzoato-Κ2 O:O′)Bis­[(N,N-Di­Ethyl­Nicotinamide-Κn 1)Copper(II)]

Abstract

In the title centrosymmetric binuclear CuII complex, [Cu2(C7H4ClO2)4(C10H14N2O)2], the two CuII cations [Cu⋯Cu = 2.6314 (4) Å] are bridged by four 3-chloro­benzoate (CB) anions. The four carboxyl­ate O atoms around each CuII cation form a distorted square-planar arrangement, the distorted square-pyramidal coordination geometry being completed by the pyridine N atom of the N,N-di­ethyl­nicotinamide (DENA) mol­ecule. The dihedral angle between the benzene ring and the carboxyl­ate group is 4.49 (11)° in one of the independent CB ligands and 12.00 (10)° in the other. The benzene rings of the independent CB ligands are oriented at a dihedral angle of 84.13 (6)°. In the crystal, weak C—H⋯O hydrogen bonds link the binuclear complex mol­ecules into supra­molecular chains running along [101].