A Fluorescent In(III) Metal-Organic Framework for Explosives Detection

Anovel metal-organic framework {[In-3(TATAT)(2)].3CH(3)NH(3). 7NMF.8H(2)O}[JLU-MOF101, H(6)TATAT=5,5',5"-(1,3,5-triazine-2,4,6-triyl)tris-(azanediyl)triisophthalate, NMF=N-methyl-formamide] with cor topology has been synthesized under solvothermal conditions. The framework of JLU-MOF101 is constructed by {In(COO)(4)}(?) nodes and a hexacarboxylic organic ligand. JLU-MOF101 exhibits excellent fluorescence properties in N,N-dimethylformamide(DMF) solution, and its emission spectrum can be greatly overlapped with the ultraviolet absorption spectra of trinitrophenol(TNP) and 2,4-dinitrophenol(2,4-DNP). As a result, JLU-MOF101 exhibits excellent performance of fluorescence quenching for TNP and 2,4-DNP. In addition, we demonstrate the selective detection capability of JLU-MOF101 through a large number of anti-interference tests.