High-efficiency Fluorescent Probe Constructed by Triazine Polycarboxylic Acid for Detecting Nitro Compounds

By means of hydrothermal synthesis, a series of isomorphic lanthanide rare earth complexes [Ln(2)(TTHA) (H2O)(4)]center dot 7H(2)O (Ln = Sm(1), Eu(2), Gd(3), Tb(4) and Dy(5)) were constructed by triazine polycarboxylic acid ligand (H(6)TTHA). They were characterized by elemental analysis, IR, TG, PXRD, UV-vis, etc. In particular, the structure of complex 1 was analyzed as a representative, and the results showed that it was a porous 3D structure. Fluorescence sensing tests showed that complexes 2 and 4 can be used as novel fluorescent probes for the efficient detection of nitroaromatic compounds.