Synthesis and Photophysics of a Flavone Derivative with Lariat Ether as a Fluoroionophore |
| |
| Authors: | WANG Peng-fei WU Shi-kang |
| |
| Affiliation: | Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101 |
| |
| Abstract: | A new kind of fluoroionophore--a flavone derivative linked to 12-crown-4 was synthesized and char acterized.The spectroscopy and photo physical behavior of the fluor oionophore for its complexation with different cations were investigated.The complexation causes a significant change of spectro scopy and photophysical properties and is attributable to the enhancement of the cation-induced intramo lecular charge transfer via directinter action of the cation bound to the crown and the carbonyl group of flavone.Based on the determination of the stability constant,the selectivit y for Ca2+ was found in the fluoroiono phore,which was totally different from the parent crown--12-crown-4.That could tentatively account for the high selectivity.It might be valuable for designing the new fluor oionophore linked crown. |
| |
| Keywords: | Molecular recognition Lariat crown ether Fluoroionophore Flavone derivatives |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高等学校化学研究》浏览原始摘要信息 |
|
点击此处可从《高等学校化学研究》下载全文 |
