In the title centrosymmetric dinuclear complex, [Cu2(3-CPOA)2(C3H4N2)4]·2H2O (3-CPOA2− is the 3-carboxylatophenoxyacetate dianion, C9H6O5), each CuII ion is coordinated by three carboxyl O atoms, one ether O atom from two 3–CPOA2− groups and two N atoms from two imidazole co-ligands, displaying an elongated square-pyramidal coordination geometry with a based capped by one very long semicoordinate Cu—Ocarboxyl bond [2.8191 (15) Å]. The two CuII ions are bridged by 3–CPOA2− ligands, generating a macrocyclic ring motif, with a Cu…Cu separation of 6.879 (3) Å. The dinuclear motifs are further linked into a two-dimensional supramolecular network via hydrogen-bonding interactions.
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Document Type: Research Article
Publication date: December 1, 2004