A Robust Luminescent Tb(III)-MOF with Lewis Basic Pyridyl Sites for the Highly Sensitive Detection of Metal Ions and Small Molecules

作者：Zhao, Jun; Wang, Ye-Nan; Dong, Wen-Wen; Wu, Ya-Pan; Li, Dong-Sheng^*; Zhang, Qi-Chun^*

来源：Inorganic Chemistry, 2016, 55(7): 3265-3271.

DOI：10.1021/acs.inorgchem.5b02294

• ORGANIC-FRAMEWORKS
• COORDINATION POLYMERS
• MAGNETIC-PROPERTIES
• CRYSTAL-STRUCTURES
• FLUORESCENT SENSOR
• FE3+
• RECOGNITION
• SELECTIVITY
• CHEMISTRY
• EXCHANGE

A new luminescent terbium metal organic framework [Tb-3(L)(2)(HCOO).(H2O)(5)]center dot DMF center dot 4H(2)O (1) (H4L = 4,4'-(pyridine-3,5-diyl)diisophthalic acid) has been successfully assembled by Tb3+ ions and an undeveloped pyridyl-tetracarbokylate. Compound 1 exhibits a 3D porous (3,8)-connected (4.5(2))(2)(4(2).5(12).6(6).7(5).8(3)) topological framework with fascinating 1D Open hydrophilic channels decorated by uncoordinated Lewis basic pyridyl nitrogen atoms. In particular, the Tb-MOF (1) can detect Cu2+ ions with high selectivity and sensitivity, and its luminescence is nearly entirely quenched in N,N-dimethylforrnamide (DMF) solution and biological system. In addition, 1 still has high detection for the trace content of nitromethane with 70 ppm, which suggests that 1 is a promising example of dual functional materials with sensing copper ions and nitromethane.

• 出版日期2016-4-4
• 单位三峡大学