Lanthanide metal-organic frameworks as multifunctional luminescent sensor for detecting cations, anions and organic solvent molecules in aqueous solution

Eight water-stable isostructural 3D Ln-MOFs {[Eu5xTb5(1−x)(OH)6(TZI)3(DMA)1.5(H2O)10.5]·DMA·0.5H2O}n based on pentanuclear clusters were prepared. The Ln-MOFs represented the rapid and drastic emission quenching induced by Fe3+ cations, CO32−, PO43−, AsO43− anions and acetone molecules in aqueous solution. the luminescence colors of the bimetallic (Tb5(1−x):Eu5x) compounds can easily be tuned by doping isostructural Ln-MOFs with Eu3+ and Tb3+ ions.