Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (6): 1005-1009.doi: 10.1007/s40242-023-3058-5

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

LI Wen1, LIU Xinyao1,2, LI Guanghua1, and LIU Yunling1   

  1. 1. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P.R. China;
    2. Sinochem Holdings Corporation Ltd., Beijing 100031, P.R. China
  • Received:2023-03-03 Online:2023-12-01 Published:2023-11-18
  • Contact: LIU Yunling E-mail:yunling@jlu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos.22171100, 22288101) and the “111” Project of China (No.B17020).

Abstract: Anovel metal-organic framework {[In3(TATAT)2]·3CH3NH3· 7NMF·8H2O}[JLU-MOF101, H6TATAT=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.

Key words: Selective detection, Indium metal-organic framework, Fluorescent detection, Nitroaromatic explosive