Synthesis and Physical Properties of Cobalt-Zinc Hybrid Porous Metal-organic Frameworks

Coordination polymer ZnCo (BTC) (OH) (H2O)(3) (NMP) (DMF) (H2O)(1.5) was synthesized by slowly diffusing a balanced amount of organic amine into a solution of 1,3, 5-benzenetricarboxylate (H-3 BTC), zinc nitrate and cobalt nitrate. X-ray single crystal diffraction shows that the compound crystallizes in cubic, space group P2(1)3, and its cell parameter is 1. 43863(20) nm. Its physical properties were characterized by elemental analysis (EA), energy-dispersive X-ray spectroscopy (EDS), X-ray powder diffraction (XRD), N-2 sorption and variable-temperature magnetic susceptibility. The gas sorption shows this compound holds I-isotherm characteristic of micropore, which is 0. 84 nm of pore size and 832 m(2)/g of langmiur surface area. The magnetic results show that it exhibits antiferromagnetism in the temperature range of 37-300 K.