Acta Cryst. (2006). E62, m628-m630  [ doi:10.1107/S1600536806006477 ]

catena-Poly[[aqua(4,4'-dimethyl-2,2'-bipyridine)copper(II)]--fumarato-²O,O':²O'',O'''-[aqua(4,4'-dimethyl-2,2'-bipyridine)copper(II)]--fumarato-O:O']

G.-Y. Dong, G.-H. Cui and J. Lin

Abstract: The title compound, [Cu(C₄H₂O₄)(C₁₂H₁₂N₂)(H₂O)]_n, has a neutral polymeric chain structure in which fumarate ligands link the Cu atoms; the chains are then linked together by hydrogen bonds. The unique Cu^II ion exhibits a distorted octahedral coordination geometry defined by three O atoms of two different centrosymmetric fumarate ligands, two N atoms from the chelating dmbpy ligand (dmbpy is 4,4'-dimethyl-2,2'-bipyridine) and one water molecule. The fumarate ligands show two types of coordination modes, viz. bis-bidentate-chelating and bis-mono-O-carboxylate bridging.

Online 28 February 2006

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