A simple and safe method for the preparation of bis[2‐(2H‐tetrazol‐5‐yl)pyridinium] tetrachloridozincate(II)

In the title complex salt, (C₆H₆N₅)₂ZnCl₄], the Zn^II cation is coordinated by four chloride ligands in a distorted tetrahedral geometry. The organic cations and complex anions are connected by N—H...Cl hydrogen bonds, leading to the formation of a three‐dimensional network. The title complex salt was synthesized by the reaction of sodium azide, pyridine‐2‐carbonitrile and ZnCl₂ in aqueous solution. The salt was characterized by elemental analysis and IR and UV–Vis spectroscopy.