Acta Cryst. (2007). E63, m1662-m1663  [ doi:10.1107/S1600536807022544 ]

Bis(-pyridazine-3-carboxylato)-³N,O:O;³O:N,O-bis[triaquacalcium(II)]

W. Starosta and J. Leciejewicz

Abstract: The structure of the title compound, [Ca₂(C₅H₃N₂O₂)₂(H₂O)₆], is composed of centrosymmetric dimeric molecules, in which the Ca^II ions are bridged by two carboxylate O atoms of bidentate ligands. Each Ca^II ion is coordinated by two carboxylate O atoms, a hetero-ring N atom and three water O atoms. The coordination number of each Ca^II ion is eight, forming a distorted decahedron. Coordinated water molecules act as donors linking adjacent dimers into a three-dimensional hydrogen-bonded network. Intra-dimer hydrogen bonds are also present.

Online 23 May 2007

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