Crystal structure of a two-dimensional coordination polymer of formula [Zn(NDC)(DEF)] (H(2)NDC is naphthalene-2,6-di-carb-oxy-lic acid and DEF is N,N-di-ethyl-formamide).

A zinc metal-organic framework, namely poly[bis-(N,N-di-ethyl-formamide)(μ(4)-naphthalene-2,6-di-carboxyl-ato)(μ(2)-naphthalene-2,6-di-carboxyl-ato)dizinc(II)], [Zn(C(12)H(6)O(4))(C(15)H(11)NO)] (n) , built from windmill-type secondary building units and forming zigzag shaped two-dimensional stacked layers, has been solvothermally synthesized from naphthalene-2,6-di-carb-oxy-lic acid and zinc(II) acetate as the metal source in N,N-di-ethyl-formamide containing small amounts of formic acid.