Acta Cryst. (2004). E60, m1933-m1935  [ doi:10.1107/S1600536804029976 ]

Bis(-3-carboxylatophenoxyacetato)bis[(1H-imidazole)copper(II)] dihydrate

S. Gao, C.-S. Gu, L.-H. Huo, J.-W. Liu and J.-G. Zhao

Abstract: In the title centrosymmetric dinuclear complex, [Cu₂(3-CPOA)₂(C₃H₄N₂)₄]·2H₂O (3-CPOA^2- is the 3-carboxylatophenoxyacetate dianion, C₉H₆O₅), each Cu^II ion is coordinated by three carboxyl O atoms, one ether O atom from two 3-CPOA^2- 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-O_carboxyl bond [2.8191 (15) Å]. The two Cu^II ions are bridged by 3-CPOA^2- ligands, generating a macrocyclic ring motif, with a CuCu separation of 6.879 (3) Å. The dinuclear motifs are further linked into a two-dimensional supramolecular network via hydrogen-bonding interactions.

Online 27 November 2004

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