Acta Cryst. (2004). E60, m1481-m1483  [ doi:10.1107/S1600536804023025 ]

Diaqua-trans-bis(pyridazine-3-carboxylato-²O,N)zinc(II)

M. Gryz, W. Starosta and J. Leciejewicz

Abstract: In the structure of the title compound, [Zn(C₅H₃N₂O₂)₂(H₂O)₂], the Zn^II ion is located on a centre of symmetry. The coordination around the Zn^II atom is slightly distorted octahedral, with two equatorial pyridazine-3-carboxylate ligands in a trans arrangement. A pyridazine-ring N atom [Zn-N = 2.0742  (15)  Å] and one carboxylate O atom [Zn1-O2 = 2.0744  (14)  Å] from each ligand coordinate to the metal. Two water O atoms [Zn-O = 2.1934  (17)  Å] are coordinated in axial positions. The coordinated water molecules act as hydrogen-bond donors to the unbonded carboxylate O atoms in adjacent monomers, forming a three-dimensional network.

Online 25 September 2004

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