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Acta Cryst. (2013). E69, m94
[ doi:10.1107/S1600536813000330 ]


B. Artetxe, L. San Felices, A. Pache, S. Reinoso and J. M. Gutiérrez-Zorrilla

Abstract: The title compound, [Co(C4H3N2O2)2(H2O)2], contains a CoII cation on a twofold rotation axis, exhibiting a distorted octahedral coordination geometry. The equatorial plane is formed by two N,O-bidentate 1H-imidazole-4-carboxylate ligands and the axial positions are occupied by water molecules. The crystal packing consists of a three-dimensional network stabilized by O-H...O and N-H...O hydrogen bonds, together with weak [pi]-[pi] interactions [centroid-centroid distance = 3.577 (2) Å] between the imidazole rings.

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