Received 22 October 2008
The title compound, [Cd(C6H4NO3)2(H2O)4], was obtained by the reaction of cadmium chloride with 5-hydroxynicotinic acid. The CdII atom is located on an inversion centre and is coordinated by two N atoms from two 5-hydroxynicotinic acid ligands and four water molecules in a distorted octahedral geometry. The structure is stabilized by intermolecular O-HO hydrogen bonds, forming a three-dimensional network.
Data collection: SMART (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: XPREP (Bruker, 2004); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: AT2660 ).
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