A Coordination Polymer Constructed by Tetranuclear Copper Cluster Units and Its Photocatalytic Degradation Properties
A coordination polymer[Cu2(μ3-OH)(1,3-BIP)(BTC)]n(SNUT-20)was constructed by 1,3-di(lH-imidazol-1-yl)propane(1,3-BIP),benzene-1,3,5-tricarboxylic acid(H3BTC)and Cu(NO3)2·3H2O under solvothermal method.Its structure was confirmed by elemental analysis(EA),thermogravimetric analysis(TGA),FT-IR and single crystal X-ray diffraction.Single crystal X-ray diffraction exhibits that SNUT-20 is a 3D framework with a tetranuclear copper cluster as a secondary structural unit,which forms a binodal(3,8)-connected topology by further ligation of mixed ligand.In addition,SNUT-20 exhibits good photocatalytic degradation performance for rhodamine B(RhB),methylene blue(MB)and methyl orange(MO),RhB,MB and MO reach 81.5%,89.4%and 48.3%of the degradation rates,respectively.