A novel terbium metal-organic framework for luminescence sensing of pyridine:Synthesis,structure,selectivity,sensitivity and recyclability

作者：Ying Shi,Liyuan He,Xinxin Wang,Zhilei Wu,Ning Gao,Huan Zhang,Wenmin Wang,Jianzhong Cui

摘要：One novel two-dimensional(2D)terbium-based framework[Tb(L2-)(Ac)(DMA)]n(1)(H2 L=4’-(3,5-dicarboxyphenyl)-4,2’:6’,4"-terpyridine)was successfully isolated and structurally characterized.The structural analysis reveals that two Tb3+ions in 1 are bridged by twoη1:η1:μ2 carboxylates from L2-to form a binuclear unit,which is further linked by L2-to generate a 2D layer with kgd topology.Moreover,1 displays excellent thermostability and extensive solvent stability.Luminescent measurements reveal that 1 can be used as a recyclable luminescent probe for detecting pyridine with the lowest detection lim it of 0.12 vol%,and the luminescent mechanism is also discussed.

发文机构：Department of Biology Department of Chemistry Department of Chemistry School of Science College of Chemistry and Environmental Science

关键词：Metal-organicframeworksLUMINESCENCEPYRIDINERECYCLABILITYLowestdetectionlimitRareearths

分类号： O62[理学—有机化学]