Poly[aqua-μ-bromido-(μ₂-5-methyl­pyrazine-2-carboxyl­ato-κ⁴N¹,O²:O²,O^2′)lead(II)]

In the title coordination polymer, [PbBr(C₆H₅N₂O₂)(H₂O)]_n, the Pb^II atom is coordinated by one pyrazine N atom, two bridging Br atoms, a water mol­ecule and three carboxyl­ate O atoms. Bridging by the two anions generates a layer structure parallel to (001); the layers are linked by O—H...N and O—H...Br hydrogen bonds, forming a three-dimensional network. The lone pair is stereochemically active, resulting in a Ψ-dodeca­hedral coordination environment for Pb^II.