三氮唑取代杯[4]芳烃配位聚合物的合成与荧光性能

利用四1-(1, 2, 4-三氮唑基)甲基]间苯二酚杯4]芳烃配体(TTR4A)在溶剂热的条件下合成了两个配位聚合物，Zn₂(TTR4A)(L)₂]·DMF·4H₂O]_n(化合物1) (DMF = N, N-二甲基甲酰胺)和Co(TTR4A)Cl₂]·DMA·H₂O]_n (化合物2) (H₂L = 4, 4’-联苯二甲酸) (DMA = N, N-二甲基乙酰胺)。通过单晶X射线衍射方法对这两个配位聚合物的结构进行了确定。利用红外、元素分析、粉末X射线衍射(PXRD)和热重表征手段对化合物1和2进行了表征。在化合物1中，四个L配体连接着四个Zn(Ⅱ)离子形成了环状的Zn₄L₄结构单元，该结构单元进一步地被TTR4A链接形成了一维链状结构。在化合物2中，TTR4A的四个三氮唑基团各连接一个Co(Ⅱ)离子形成二维层状结构。此外，我们对化合物1的荧光性能进行了研究，荧光测定表明固态条件下化合物1发出很强的荧光，并能够选择性地对Fe³⁺、Cr₂O₇^2?和硝基苯分子产生响应。

Syntheses and Luminescent Properties of Coordination Polymers Based on 1, 2, 4-Triazole-Substituted Resorcin[4]arene

Two new coordination polymers, namely, Zn₂(TTR4A)(L)₂]·DMF·4H₂O]_n (compound 1) and Co(TTR4A)Cl₂]·DMA·H₂O]_n (compound 2), have been synthesized under solvothermal conditions (TTR4A = tetrakis(1, 2, 4-triazol-ylmethylresorcin4]arene), L = 4, 4'-biphenyldicarboxylic acid, DMF = N, N-dimethylformamide and DMA = N, N-dimethylacetamide). Crystal structures of the coordination compounds 1 and 2 were determined by single-crystal X-ray diffraction analyses, and further characterized by infrared spectra, elemental analyses, powder X-ray diffraction, and thermogravimetric analyses. In coordination compound 1, four L ligands bridge four adjacent Zn(Ⅱ) atoms to generate macrocyclic Zn₄L₄ units, which are further linked by the TTR4A ligands into a one-dimensional chain structure. In coordination compound 2, four 1, 2, 4-triazole groups of each TTR4A ligand bridge four Co(Ⅱ) atoms to form a two-dimensional layer structure. Furthermore, studies on the luminescent properties of compound 1 in solid state at room temperature reveal that it exhibits an intense emission peak. Luminescent-sensing detections for Fe³⁺, Cr₂O₇^2?, and nitrobenzene solvents were also investigated by using compound 1 as the potential luminescent sensor.