[(Pyridine-2,6-dicarboxyl-ato)copper(II)]-μ-(pyridine-2,6-dicarboxyl-ato)-[bis-(ethyl-enediamine)-copper(II)]-μ-(pyridine-2,6-dicarboxyl-ato)-[(pyridine-2,6-dicarboxyl-ato)copper(II)] ethyl-enediamine monosolvate tetra-hydrate

摘要

The title compound, [Cu3(C7H3NO4)4(C2H8N2)2]·C2H8N2·4H2O, was obtained by the reaction of copper(II) acetate dihydrate with pyridine-2,6-dicarb-oxy-lic acid (H2dipic) and ethyl-enediamine (en) in an aqueous solution. All of the CuII atoms in the trinuclear centrosymmetric title complex are six-coordinated in a distorted octa-hedral geometry with N2O4 and N4O2 environments for the outer and central CuII atoms, respectively. Various inter-actions, including numerous O—H?O and C—H?O hydrogen bonds and C—O?π stacking of the pyridine and carboxyl-ate groups [O?centroid distances = 3.669?(2) and 3.668?(2)??] are observed in the crystal structure.