Synthesis, Crystal Structure and Catalytic Properties of a Novel Ni(Ⅱ) MOF with a Rare [3+3+3] Nine Fold Interpenetrated Network

Metal-organic frameworks are a sort of rapid development crystal solids,which have greatly attracted a large amount of attention in recent decades.The construction of 3D[Ni(bcp)(bpp)]n(namely complex 1)displays a rare[3+3+3]nine-fold interpenetrated diamond topology,which can be successfully synthesized by a mixed strategy of 1,3-bis(4-carboxyphenoxy)propane(H2bcp)and 1,4-bis(4-pyridylmethyl)piperazine(bpp).The interpenetrated network may be ascribed to these flexible bridging linkers to facilitate the penetration degree.In addition,the resultant sample was adequately characterized by elemental analysis,single-crystal X-ray diffraction,powder X-ray diffraction,and thermal gravimetric analysis.Furthermore,the as-synthesized sample can be used as catalysis for chemical fixation of CO2 and epoxide to carbonate.