Synthesis and crystal structure of a three-dimensional network coordination polymer:: [Pb(C5H4NCOO)2(H2O)]n

A new coordination polymer [Pb(C5H4NCOO)(2)(H2O)](n) has been prepared by reaction of Pb(NO3)(2) with isonicotinic acid in the presence of equimolar NaOH. Single-crystal X-ray diffraction analysis reveals that the coordination geometry of each lead(II) centre in [Pb(C5H4NCOO)(2)(H2O)](n) is a distorted square antiprism comprised of five O atoms and one N atom from three distinct isonicotinate ligands, and two water molecules. The complex displays a three-dimensional network structure, in which isonicotinate ligands adopt two different bridging coordination modes.