State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry , Jilin University , Changchun 130012 , P. R. China.
Inorg Chem. 2019 Mar 18;58(6):4026-4032. doi: 10.1021/acs.inorgchem.9b00204. Epub 2019 Mar 4.
By using the mixed-linker strategy, a new pillar-layered luminescence Zn-LMOF (JLU-MOF71) ([ZnNa(TPHC)(4,4-Bipy)(DMF)]·8HO) (TPHC = [1,1':2',1″-terphenyl]-3,3″,4,4',4″,5'-hexacarboxylic acid, 4,4-bipy = 4,4-bipyridine, DMF = N, N-dimethylformamide) was successfully synthesized and structurally characterized. JLU-MOF71 is constructed by the 4,4-bipy pillars and 2D layers which consist of Zn and TPHC ligands, and displays a rare fsh topology. Benefiting from the uncoordinated carboxylate sites in the framework, JLU-MOF71 not only can sensitively detect trace amounts of individual Fe and 2,4,6-trinitrophenol (TNP) through luminescence quenching but also exhibits high selectivity when other competing analytes exist. Besides, TNP can also be effectively monitored with the help of the shifting direction of luminescent spectra (red shift) which has rarely been reported before. On the basis of the aforementioned, JLU-MOF71 can be considered as a potential luminescence sensor for detecting Fe and TNP.
通过使用混合连接体策略，成功合成并结构表征了一种新型的柱状层状发光 Zn-LMOF（JLU-MOF71）([ZnNa(TPHC)(4,4-Bipy)(DMF)]·8H2O)（TPHC=[1,1':2',1″-三联苯]-3,3″,4,4′,4″,5′-六羧酸，4,4-bipy=4,4-联吡啶，DMF=N,N-二甲基甲酰胺）。JLU-MOF71 由 4,4-bipy 柱和由 Zn 和 TPHC 配体组成的 2D 层构成，呈现出罕见的 fsh 拓扑结构。由于骨架中未配位的羧酸盐位点，JLU-MOF71 不仅可以通过发光猝灭灵敏地检测痕量的单个 Fe 和 2,4,6-三硝基苯酚（TNP），而且在存在其他竞争分析物时表现出高选择性。此外，在发光光谱的移动方向（红移）的帮助下，也可以有效地监测 TNP，这在以前很少有报道。基于上述情况，JLU-MOF71 可以被认为是一种用于检测 Fe 和 TNP 的潜在发光传感器。
