A 3D supramolecular network as highly selective and sensitive luminescent sensor for PO43- and Cu2+ ions in aqueous media
A 3D supramolecular network as highly selective and sensitive luminescent sensor for PO43- and Cu2+ ions in aqueous media
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3D 超分子网络作为水介质中 PO43- 和 Cu2 离子的高选择性和灵敏发光传感器
DOI：
10.1016/j.dyepig.2017.11.008
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发表时间：
2018
影响因子：
4.5
通讯作者：
Ruiren Tang
中科院分区：
文献类型：
--
作者：
Yuan Xie;Shigang Ning;Yong Zhang;Zilong Tang;Shaowei Zhang;Ruiren Tang
在py存在下，通过H2btca和Zn(NO3)2·6H2O的水热反应，高产率地制备了二维配位聚合物{[Zn(btca)(py)2]}n(1)，(H2btca=苯并三唑-5-羧酸，py=吡啶)，并通过多种方法进一步表征了该聚合物。 元素分析、热重 (TG) 分析、红外 (IR) 光谱、粉末 X 射线衍射 (PXRD) 和 X 射线单晶衍射。在1中，每个Zn2+采用五配位五角双锥几何形状，其中一个O原子来自btca2-配体的一个羧酸基团，四个N原子来自两个btca2-配体和两个py分子。相邻的Zn2+通过btca2−配体连接，生成具有“fes”型拓扑的2D层，该层可以通过氢键相互作用进一步形成3D超分子网络。此外，发光结果表明，1作为发光传感器检测Cu2+和PO43−的检测限分别达到3和45 ppm，表明1可以灵敏、选择性地检测水溶液中的Cu2+和PO43−。
A 2D coordination polymer, {[Zn(btca)(py)2]}n(1), (H2btca = benzotriazole-5-carboxylic acid, py = pyridine), has been prepared with high yield by the hydrothermal reaction of H2btca and Zn(NO3)2·6H2O in the presence of py, which has been further characterized by kinds of methods combining elemental analysis, thermogravimetric (TG) analysis, infrared (IR) spectrum, powder X-ray diffraction (PXRD), and X-ray single-crystal diffraction. In1, each Zn2+adopts a five-coordinated pentagonal bipyramid geometry with one O atom from one carboxylate group of btca2−ligand and four N atoms from two btca2−ligands and two py molecules. Adjacent Zn2+are connected by btca2−ligands to generate a 2D layer with the ‘fes’-type topology, which could further form a 3D supramolecular network through hydrogen bonds interactions. Furthermore, the luminescent results reveal that the detection limit of1as a luminescent sensor to probe Cu2+and PO43−could reach 3 and 45 ppm, respectively, suggesting that1can sensitively and selectively detect Cu2+and PO43−in aqueous solution.