Ratiometric determination of Hg2+ ions based on simple molecular motifs of pyrene and dioxaoctanediamide.

Abstract

A new podand-type dioxaoctanediamide-based chemosensor having two pyrene moieties was prepared, and its fluoroionophoric behaviors toward transition-metal ions were investigated. Pyrene-appended dioxaoctanediamide 1 showed a selective fluorescence quenching toward Hg2+ ions over other transition-metal ions in an aqueous methanol solution. Unique responses in pyrene monomer and excimer emissions allowed selective ratiometric determination of Hg2+ ions in aqueous environments, and the detection limit was found to be 1.6 x 10(-6) M. [structure: see text]

Cite this paper

@article{Kim2007RatiometricDO, title={Ratiometric determination of Hg2+ ions based on simple molecular motifs of pyrene and dioxaoctanediamide.}, author={Jun Soo Kim and Myung Gil Choi and Ki Cheol Song and Kyoung Tai No and Sangdoo Ahn and Suk-Kyu Chang}, journal={Organic letters}, year={2007}, volume={9 6}, pages={1129-32} }