Poly[([mu]₅-3-carb­oxy­benzene-1,2-di­carboxyl­ato)lead(II)]: a helical lead(II) coordination polymer

A chiral two-dimensional lead(II) coordination polymer containing right-handed helical chains has been prepared under hydro­thermal conditions using an achiral organic 3-carb­oxy­benzene-1,2-di­carboxyl­ate linker ligand. The thermogravimetric and optical properties are also reported.