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Synthesis and Photocatalytic Property of a PorousThreeDimensional Supramolecular Cobalt Compound
LIN Hongyan, TIAN Yuan, ZENG Ling, WANG Qinglin
Journal of Jilin University Science Edition. 2017, 55 (01):
162-167.
A new porous cobalt compound [Co(L)1.5(BDC)(H2O)3]n(1) (L=N,N′-bis(3-pyridyl)adipamide, H2BDC=1,2benzenedicarboxylic acid) was prepared by the selfassembly process of hydrothermal synthesis by selecting the mixed ligands of the flexible bis(pyridyl)bis(amide) L and the aromatic dicarboxylate H2BDC. The crystal structure of the compound was characterized by the element analysis, IR and the single crystal Xray diffraction technique. Experimental results show that the compound belongs to triclinic system, P1 space group, a=1.097 87(10) nm, b=1.213 82(11) nm,c=1.429 40(13) nm, α=72.788(2)°, β=75.235(2)°, γ=72.127(2)°, V=1.703 3(3) nm3, Mr=575.43, Z=2, Dcal=1122 g/cm3, μ=
0.549 mm-1, F(000)=598, S=1.064, R1=0.054 3, ωR2=0.151 8. The metal cobalt ions are bridged by the bidentate L ligands to form a onedimensional [Co(L)1.5]2n+n chain structrue, and the carboxylate ligand BDC is suspended on both sides of this chain with a monodentated coordination mode.
A threedimensional supramolecular porous network with large pore structure is expanded by the hydrogenbonding interactions among onedimensional chains. This porous cobalt compound shows the remarkable photocatalytic degradation ability to the organic dye molecules methylene blue or congo red under the UV light.
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