Selective Chemosensing of Hg2+ Ions by Diazatetrathia-crown Ether Having Nitrobenzoxadiazolyl Subunits

Bulletin of the Korean chemical society

Myung Gil Choi¹  Suk-Kyu Chang¹  Ji Yeon Park¹  So Hee Kim¹  Na Jin Youn¹ 

关键词: Chemosensor;    Fluoroionophore;    Hg2+ ions;    Diazatetrathia-crown ether;    Nitrobenzoxadiazolyl subunit;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A diazatetrathia crown ether derivative that has two appended nitrobenzoxadiazolyl moieties showed selective OFF-ON type fluoroionophoric signaling properties toward Hg²⁺ ions over other transition metal ions. The compound also exhibited a pronounced chromogenic behavior toward Hg²⁺ ions by changing the solution color from light orange to yellow, which can easily be detected with naked-eye. The detection limit for the analysis of Hg²⁺ ions in 90% aqueous acetonitrile was found to be 4.8 �? 10^-6 M, which suggests that the compound may be used as a chemosensor for analyzing sub-millimolar Hg²⁺ ions in aqueous environments.

【 授权许可】

Unknown