Synthesis of a Rare Doubly-interpenetrating Zinc(II) Coordination Polymer for Applications in Photocatalysis

A rare doubly-interpenetrating Zn-MOF(complex 1),formulated as{Zn(tci)-(bpy)(NO3)·DMF·0.5CH3CN}n(H3tci=tri(2-carboxyethyl)isocyanurate,bpy=4,4-bipyridine),has been constructed under solvothermal conditions and characterized by single-crystal X-ray diffraction,infrared spectroscopy(IR)and powder X-ray diffraction(PXRD).1 crystallizes in monoclinic system,space group C2/c with a=21.5759(4),b=12.87221(18),c=26.4917(5)Å,β=109.462(2)°,V=6937.1(2)Å3,C50H56N14O27Zn4,Mr=1546.56,Z=4,Dc=1.481 g·cm-3,μ=2.325 mm-1λ=1.54178Å,F(000)=3160,S=1.041,R=0.0621 and wR=0.1773.1 features a two-fold interpenetrating 3D hms topology.Moreover,the thermal stabilities,fluorescent and CO2 adsorption properties were investigated.Complex 1 showed highly encoura-ging photocatalytic degradation of toxic dye molecules with a potential application in wastewater purification.