title: Poly[aqua-μ-bromido-(μ(2)-5-methyl-pyrazine-2-carboxyl-ato-κ(4)N(1),O(2):O(2),O(2'))lead(II)].
abstract: In the title coordination polymer, [PbBr(C(6)H(5)N(2)O(2))(H(2)O)](n), the Pb(II) atom is coordinated by one pyrazine N atom, two bridging Br atoms, a water mol-ecule and three carboxyl-ate 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-dodeca-hedral coordination environment for Pb(II).
authors.affiliation: Tianjin Key Laboratory of Structure and Performance of Functional Molecules, Tianjin Normal University, Tianjin 300071,  People's Republic of China.
authors.forename: Pan
authors.initials: P
authors.lastname: Yang
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Hua Yun
authors.initials: HY
authors.lastname: Li
authors.forename: Bin
authors.initials: B
authors.lastname: Ding