Abstract
Four isostructural 3D lanthanide metal-organic frameworks (Ln-MOFs) {[Ln(L)(ox)0.5(H2O)2]·H2O}n (Ln=Pr 1, Nd 2, Sm 3 and Eu 4) were constructed by 5-hydroxyisophthalic acid (H2L) and oxalate (ox) through solvothermal methods, which show a (4,5)-connected tcs net with the point symbol of (44·62)(44·66). Compound 4 exhibits an intense red fluorescence in solid state and is an excellent dual-functional recyclable luminescent sensor which can sense acetone and Cu2+ with high sensitivity and selectivity simultaneously.
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