Based on La(NO₃)₃·6H₂O and 4,4′-((5-carboxy-1,3-phenylene)bis(oxy))dibenzoic acid (H₃cpbda), a 3D porous MOFs, [La(cpbda)(H₂O)_1.5]_n (1), was synthesized by hydrothermal method and further characterized by single-crystal X-ray diffraction, power X-ray diffraction, IR spectroscopy, thermal-gravimetric analysis and fluorescence spectroscopy. Owing to its good stabilities and fluorescence property, the sensing experiments on sixteen cations and eleven anions were implemented. Moreover, the further titration processes show 1 can sensitively detect the Fe(III) cation and Cr(VI)-containing anions by quenching responses.

基于La（NO ₃）₃ ·6H ₂ O和4,4'-（（5-羧基-1,3-亚苯基）双（氧基））二苯甲酸（H ₃ cpbda），3D多孔MOF，[La通过水热法合成了（cpbda）（H ₂ O）_1.5 ] _n（1），并通过单晶X射线衍射，功率X射线衍射，IR光谱，热重分析和荧光光谱对其进行了表征。由于其良好的稳定性和荧光性质，因此对16种阳离子和11种阴离子进行了传感实验。此外，进一步的滴定过程表明1 可以通过猝灭响应灵敏地检测出含Fe（III）阳离子和Cr（VI）的阴离子。