Acta Cryst. (2003). E59, m803-m805  [ doi:10.1107/S1600536803017434 ]

catena-Poly[[aqua(diformato-O)copper(II)]--1,4-diazabicyclo[2.2.2]octane-²N:N']

L. Sieron

Abstract: The title compound, [Cu(CHO₂)₂(C₆H₁₂N₂)(H₂O)]_n, forms a polymeric chain, [Cu(HCOO)₂(dabco)(H₂O)] (dabco is 1,4-diazabicyclo[2.2.2]octane). Both formate ligands are O-monodentate anions and dabco acts as a bridging ligand, creating a linear polymeric arrangement interconnected by O_water-HO_carboxy hydrogen bonds. The deformed square-pyramidal Cu^II coordination comprises two N and two O atoms as the base, and a water molecule in the apical position. The point symmetry of the Cu^II polyhedron and the dabco ligand is mm, and the formate anions lie on the mirror planes ¼, y, z and ¾, y, z.

Online 30 August 2003

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