In the Human hair title coordination polymer, [PbBr(C6H5N2O2)(H2O)]n, the PbII 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 Earrings is stereochemically active, resulting in a Ψ-dodecahedral coordination environment for PbII.