The newly synthesized Zn4O-based MOF 3∞[Zn4(μ4-O)(Metrz-pba)2mPh}3]·8 DMF (1·8 DMF) of rare tungsten carbide (acs) topology exhibits a porosity of 43% and remarkably high thermal stability up to 430 °C. Single crystal X-ray structure analyses could be performed using as-synthesized as well as desolvated crystals. Besides the solvothermal synthesis of single crystals a scalable synthesis of microcrystalline material of the MOF is reported. Combined TG-MS and solid state NMR measurements reveal the presence of mobile DMF molecules in the pore system of the framework. Adsorption measurements confirm that the pore structure is fully accessible for nitrogen molecules at 77 K. The adsorptive pore volume of 0.41 cm3 g−1 correlates well with the pore volume of 0.43 cm3 g−1 estimated from the single crystal structure.
新合成的稀有碳化钨(acs)拓扑结构的Zn4O基MOF 3∞[Zn4(μ4-O)(Metrz-pba)2mPh}3]·8 DMF (1·8 DMF)的孔隙率为43%,高达 430 °C 的热稳定性非常高。单晶 X 射线结构分析可以使用合成晶体和去溶剂化晶体进行。除了单晶的溶剂热合成之外,还报道了 MOF 微晶材料的可扩展合成。 TG-MS 和固态 NMR 的组合测量揭示了框架的孔系统中存在移动的 DMF 分子。吸附测量证实,氮分子在 77 K 时完全可以进入孔隙结构。0.41 cm3 g−1 的吸附孔隙体积与根据单晶结构估计的 0.43 cm3 g−1 的孔隙体积有很好的相关性。