Acta Cryst. (2009). E65, m310  [ doi:10.1107/S160053680900542X ]

Poly[diaqua(-oxalato)(-2-oxidopyridinium-3-carboxylato)praseodymium(III)]

Y.-J. Xu, X.-X. Yang and H.-B. Zhao

Abstract: In the title complex, [Pr(C₆H₄NO₃)(C₂O₄)(H₂O)₂]_n, each Pr^III ion is coordinated by eight O atoms from two 2-oxynicotinate ligands, two oxalate ligands and two water molecules, displaying a distorted bicapped square-antiprismatic geometry. The carboxylate groups link adjacent praseodymium metal centres, forming layers parallel to the bc plane. The crystal packing is stabilized by intermolecular O-HO and N-HO hydrogen bonds.

Online 21 February 2009

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