Synthesis, structure, and properties of a 3D porous Zn(II) MOF constructed from a terpyridine-based ligand

摘要

A new 3D porous metal-organic framework [Zn2L2]center dot 5H(2)O (H2L = 4'-(furan-2-yl)-[2,2':6',200 ''-terpyridine]-4,4 ''- dicarboxylic acid) has been solvothermally synthesized and structurally characterized by TGA, PXRD, elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Complex 1 possesses a 3D porous framework with a sra topology. Gas adsorption measurements with N-2, H-2 and CO2 confirm its permanent porosity. Importantly, complex 1 exhibits excellent fluorescence properties that have been exploited to sense organic nitro compounds and metal ions, and the results show that complex 1 bears rapid and selective sensing capabilities for 4-NPH and 4-NP through fluorescence quenching.