In the title coordination polymer. [PbBr(C6H5N2O2)(H2O)]n. the PbII atom is coordinated by one pyrazine N atom. two bridging Br atoms. https://www.jmannino.com/great-save-Camiseta-Groves-de-corte-ajustado-con-ribete-de-algod-n-org-nico-Saxe-super-grab/