Metal-organic framework: Structure and magnetic properties of [Cu3(BTC)2 (L)x·(CuO)y]n (L=H2O, DMF)

The compounds [Cu3(BTC)2(L)x·(CuO)y], with BTC (benzene 1,3,5-tricarboxylate) and L (H2O or DMF) were prepared using electrochemical synthesis. Structural and morphologic characterizations were performed by X-ray diffraction and scanning electronic microscopy. Experimental X-ray diffraction patterns showing the isostructural relationship among the [Cu3(BTC)2]-MOF series: (a) HKUST-1, CIF theoretically calculated, (b) [Cu3(BTC)2(H2O)3], blue, synthesized at 25 °C, octahedral crystal format (c) [Cu3(BTC)2(DMF)x·(CuO)y], green, synthesized at 50 °C, hexagonal crystal format, and. XRD pattern of the CuO nanoparticles showing a single-phase and monoclinic structure. Lattice parameters are a =4.84 Å, b=3.47 Å, c=5.33 Å. The intensities and peaks positions are in agreement with the reported values (JCPDS- cards file No. 05-661).214