A highly selective fluorescent sensor for distinguishing cadmium from zinc ions based on a quinoline platform |
| |
| Authors: | Xiaoyan Zhou Pengxuan Li Zhaohua Shi Xiaoliang Tang Chunyang Chen Weisheng Liu |
| |
| Affiliation: | Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China. |
| |
| Abstract: | A fluorescent sensor, N-(quinolin-8-yl)-2-(quinolin-8-yloxy)acetamide (HL), based on 8-aminoquinoline and 8-hydroxyquinoline platforms has been synthesized. This sensor displays high selectivity and sensitive fluorescence enhancement to Cd(2+) in ethanol. Moreover, sensor HL can distinguish Cd(2+) from Zn(2+) via two different sensing mechanisms (photoinduced electron transfer for Cd(2+); internal charge transfer for Zn(2+)). The composition of the complex Cd(2+)/HL or Zn(2+)/L(-) has been found to be 1:1, based on the fluorescence/absorption titration and further confirmed by X-ray crystallography. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
