A Luminescent Terbium MOF Containing Hydroxyl Groups Exhibits Selective Sensing of Nitroaromatic Compounds and Fe(III) Ions
作者:Sanchari Pal、Parimal K. Bharadwaj
DOI:10.1021/acs.cgd.6b00930
日期:2016.10.5
luminescence output of the Tb3+ ion. Luminescence studies reveal that the PMOF can selectively and reversibly sense nitroaromatic compounds and Fe(III) ions in DMF suspension through fluorescence quenching observable under UV light. The probable mechanisms for such sensing processes are, for the nitroaromatic compounds, the host–guest interactions with the PMOF and, for Fe3+ ion, the competitive absorption
一种新的基于3D多孔Tb(III)离子的PMOF,[Tb(L)(DMA)]·(DMA)·(0.5H 2 O)}(1)(其中L = L 3–,H 3 L =溶剂热合成中等产率的具有未配位羟基修饰孔的3'-羟基联苯-3,4',5-三羧酸)。羟基充当潜在的相互作用位点,以敏化Tb 3+的发光输出离子。发光研究表明,PMOF可以通过在紫外光下观察到的荧光猝灭来选择性和可逆地感测DMF悬浮液中的硝基芳香族化合物和Fe(III)离子。这种感应过程的可能机制是,对于硝基芳族化合物,主客体与PMOF相互作用,对于Fe 3+离子,是竞争性吸收激发能。