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.roneverhart.com/10-oz-Black-Thermal-Plastic-Molcajete-Bowl-5-1-4-x-5-1-4-x-2-1-2-1-count-box/