Acta Cryst. (2010). E66, m525-m526  [ doi:10.1107/S1600536810013188 ]

Poly[aqua(-pyrazine-2-carboxylato-³N,O:O)(-pyrazine-2-carboxylato-³N,O:O')lead(II)]

W. Starosta and J. Leciejewicz

Abstract: The polymeric structure of the title compound, [Pb(C₅H₃N₂O₂)₂(H₂O)]_n, is built up from centrosymmetric [Pb(C₅H₃N₂O₂)₂(H₂O)]₂ dimers, which are bridged by ligand carboxylate O atoms. The Pb^II ion adopts an irregular PbN₂O₅ coordination polyhedron; it is chelated by one N,O-bidentate ligand and also bonds to a water O atom. A second N,O-bidentate ligand forms the dimer bridge and another bridging O atom from a nearby dimer also bonds to the Pb^II ion, leading to layers propagating in (100). A network of O-HO hydrogen bonds operates between water O atoms (donors) and carboxylate O atoms (acceptors).

Online 17 April 2010

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