Chemistry Institute for Synthesis and Green Application, School of Materials Science & Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo, Zhejiang 315211, P.R. China.
State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
Inorg Chem. 2020 Apr 6;59(7):5004-5017. doi: 10.1021/acs.inorgchem.0c00236. Epub 2020 Mar 24.
Five new uranyl coordination polymers were prepared by the hydrothermal method based on 5-nitroisophthalic acid (Hnip) as (UO)(nip)(2,2'-bpy) (), (H4,4'-bpy)·[(UO)(nip)]·(4,4'-bpy) (), (Hbpe)·[(UO)(nip)] (), (H bpp)·[(UO)-(nip)]·HO (), and (Htmp)·(UO)(nip) [2,2'-bpy = 2,2'-bipyridine, 4,4'-bpy = 4,4'-bipyridine, bpe = 4,4'-vinylenedipyridine, bpp = 4,4' -trimethylenedipyridine, tmp = tetramethylpyrazine]. All of these synthesized complexes have been characterized by single crystal and powder X-ray diffraction, IR spectra, thermogravimetric analysis, elemental analysis, and luminescent properties. In particular, it is found that compounds and can be used as a luminescent sensor to efficiently detect arginine in aqueous solution by means of "turn-on"; the detection limits were 1.06 × 10 and 6.42 × 10 mol/L, respectively. Moreover, can also be used as a bifunctional sensor for selective sensing of MnO anion by "turn-off". The detection limit of MnO in water was 1.79 × 10 mol/L; the was 1.88 × 10. The sensing effect of arginine in simulated grape juice samples and MnO in simulated river water samples was also investigated by this sensing system with high recovery. In addition, the possible mechanism of sensing arginine and MnO in the aqueous solution was discussed.
五种新的铀酰配位聚合物是通过水热法制备的，以 5-硝基间苯二甲酸（Hnip）为配体（UO）（nip）（2,2'-bpy）（）、（H4,4'-bpy）·[(UO)(nip)]·（4,4'-bpy）（）、（Hbpe）·[(UO)(nip)]（）、（H bpp）·[(UO)-(nip)]·HO（）和（Htmp）·[(UO)(nip)]（）[2,2'-bpy = 2,2'-联吡啶，4,4'-bpy = 4,4'-联吡啶，bpe = 4,4'-乙烯二吡啶，bpp = 4,4'-三甲基二吡啶，tmp = 四甲基吡嗪]。所有这些合成的配合物都通过单晶和粉末 X 射线衍射、红外光谱、热重分析、元素分析和发光性质进行了表征。特别是，发现化合物和可以用作发光传感器，通过“开启”方式在水溶液中有效地检测精氨酸；检测限分别为 1.06×10 和 6.42×10 mol/L。此外，还可以用作 MnO 阴离子的双功能传感器，通过“关闭”进行选择性检测。在水中 MnO 的检测限为 1.79×10 mol/L；为 1.88×10。通过该传感系统还研究了模拟葡萄汁样品中精氨酸和模拟河水样品中 MnO 的传感效果，回收率高。此外，还讨论了水溶液中精氨酸和 MnO 传感的可能机制。
