Reaction of Tb³⁺ ions with p-terphenyl-3,3″,5,5″-tetracarboxylic acid (H₄ptptc) in a mixed solvent system has afforded a new metal-organic framework formulated as [Tb₂(ptptc)_1.5(H₂O)₂]_n (1). Compound 1 displays a 3D (5,6,8)-connected framework with fascinating one-dimensional triangle open channels. The luminescence explorations demonstrated that 1 exhibits highly selective and sensitive response to Fe³⁺ in DMF solution and biological system through luminescence quenching effects. In addition, 1 also shows high detection for the Cr₂O₇^2-, making it a promising dual functional materials for detecting Fe³⁺ cation and Cr₂O₇^2- anion with high sensitivity and selectivity.

Tb ³⁺离子与对-叔苯基-3,3″，5,5″-四羧酸（H ₄ ptptc）在混合溶剂体系中的反应提供了一种新的金属有机骨架，配制成[Tb ₂（ptptc）_1.5（H ₂ O）₂ ] _n（1）。化合物1显示3D（5,6,8）连接的框架，并具有迷人的一维三角形开放通道。发光探索表明1通过发光猝灭效应对DMF溶液和生物系统中的Fe ³⁺表现出高度选择性和敏感的反应。另外，1Cr ₂ O ₇ ^2-的检测率也很高，这使其成为一种有望以高灵敏度和高选择性检测Fe ³⁺阳离子和Cr ₂ O ₇ ^2-阴离子的双功能材料。