Lithium Based Metal−Organic Framework with Exceptional Stability

A three-dimensional lithium based metal−organic framework Li2(2,6-NDC) (1); UL-MOF-1, UL = ultralight; NDC = napthalenedicarboxylate; space group P21/c, a = 10.302(5), b = 5.345(2), c = 8.663(4) Å, β = 98.659(9)°, V = 471.6(4) Å3 was synthesized. The framework is stable to 610 °C. The synthesis of 1 was achieved using solvothermal methods in N,N-dimethylformamide at 180 °C and was characterized by single crystal X-ray diffraction. The structure consists of layers of two-dimensional antifluorite related LiO connected by the NDC linker.