Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China.
Org Biomol Chem. 2018 Jul 25;16(29):5343-5349. doi: 10.1039/c8ob01315b.
A selective and sensitive fluorescent chemosensor based on an anthracene-functionalized triazole-linked multifarene[2,2] was successfully synthesized and investigated with regard to the recognition of metal ions using fluorescence spectroscopy, 1H NMR titration, and IR spectroscopy. The proposed sensor exhibited desirable properties for potential fluorescence enhanced chemosensor applications, including selective affinity and low Zn2+ and Cd2+ detection limits compared with other metal ions. Quantum chemical calculations described the synthesized chemosensor's static structure and its coordination to Zn2+ and Cd2+. Frontier molecular orbital distribution and energy changes suggested a possible mechanism for increased receptor fluorescence intensity with Zn2+ and Cd2+ addition.
一种基于芘功能化三唑键联多芳烃[2,2]的选择性和灵敏荧光化学传感器已成功合成，并通过荧光光谱、1H NMR 滴定和 IR 光谱研究了其对金属离子的识别。与其他金属离子相比，所提出的传感器具有潜在荧光增强化学传感器应用所需的理想特性，包括选择性亲和力和低 Zn2+和 Cd2+检测限。量子化学计算描述了合成化学传感器的静态结构及其与 Zn2+和 Cd2+的配位。前沿分子轨道分布和能量变化表明，与 Zn2+和 Cd2+加合时，受体荧光强度增加的可能机制。
