Acta Cryst. (2009). E65, m1274  [ doi:10.1107/S1600536809039270 ]

Tetrakis(pyridine-2-carboxylato-²N,O)palladium(IV) dihydrate

N.-H. Kim and K. Ha

Abstract: The asymmetric unit of the title compound, [Pd(C₆H₄NO₂)₄]·2H₂O, consists of a quarter of a neutral Pd^IV complex and half of a solvent water molecule. In the complex, the Pd^IV ion is located on a fourfold inversion axis and eight-coordinated in a distorted dodecahedral environment by four N and four O atoms from four symmetry-related pyridine-2-carboxylate (pic) anionic ligands. In the crystal, the water molecule is involved in O-HO hydrogen bonding, and weak intermolecular C-HO hydrogen bonds occur. There are also intermolecular - interactions between adjacent pyridine rings, with a centroid-centroid distance of 3.715 (3) Å.

Online 3 October 2009

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