(2,2′-Bipyridine-κ²N,N′)bis(4-hydroxybenzoato-κ²O,O′)lead(II) monohydrate

Abstract

The reaction of lead acetate, 4-hydroxy­benzoic acid and 2,2′-bipyridine in aqueous solution gave the title complex, [Pb(C7H5O3)2(C10H8N2)]·H2O. The asymmetric unit contains one PbII atom, two 4-hydroxy­benzoate ligands, one 2,2′-bipyridine ligand and one uncoordinated water mol­ecule. The PbII atom is hexa­coordinated in a distorted tetra­gonal-bipyramidal geometry and is chelated by four carboxyl­ate O atoms and two N atoms. O—H⋯O hydrogen-bonding inter­actions, involving the uncoordinated water, the carboxyl­ate O atoms and hydr­oxy O atoms, produce a three-dimensional supra­molecular structure.