A two‐dimensional coordination polymer containing a two‐dimensional zinc–carboxylate layer constructed from helical chains: poly[(μ4‐benzene‐1,2‐dicarboxylato)zinc(II)]

The title compound, Zn(C₈H₄O₄)]_n, consists of one Zn^II cation and one benzene‐1,2‐dicarboxylate dianion (BDC^2?) as the building unit. The Zn^II cation is four‐coordinated by four carboxylate O atoms from four dianionic BDC^2? ligands in a distorted tetrahedral geometry. The Zn^II cations are linked by the BDC^2? ligands to generate a structure featuring two‐dimensional zinc–carboxylate layers containing left‐ and right‐handed helical chains. The two‐dimensional layers are stacked along the a direction. The thermal stability of the title compound has been studied.