Acta Cryst. (2008). E64, m7  [ doi:10.1107/S1600536807060977 ]

Bis(pyrimidine-2-carboxylato-²N,O)copper(II)

B.-Y. Zhang, Q. Yang and J.-J. Nie

Abstract: The title compound, [Cu(C₅H₃N₂O₂)₂], was prepared in a water-ethanol solution containing 2-cyanopyrimidine, malonic acid and copper(II) nitrate trihydrate. The Cu^II ion, located on an inversion center, is chelated by two pyrimidine-2-carboxylate anions in a CuO₂N₂ square-planar geometry. The uncoordinated carboxylate O atom and pyrimidine N atoms are linked to adjacent pyrimidine rings via weak C-HO and C-HN hydrogen bonding. - Stacking is observed between nearly parallel pyrimidine rings, the centroid-to-centroid separation being 3.8605 (13) Å.

Online 6 December 2007

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