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A series of new thionaphthalimide derivatives were prepared, and their Hg 2+ -selective signaling behavior was investigated in aqueous acetonitrile solution. A monothionaphthalimide (anti) exhibited pronounced Hg 2+ -selective chromogenic signaling behavior through a solution color change from red to yellow, which was easily detectable by eye. It (anti) also showed prominent off-on...
The HOCl-selective signaling behavior of thiocoumarin was investigated. The thio derivative of ethoxycoumarin showed selective and efficient colorimetric and fluorogenic signaling behaviors over other commonly used oxidants in an aqueous environment. The signaling is due to the oxidative desulfurization of the thiocarbonyl moiety by HOCl to yield oxocarbonyl function. The interference from Hg ...
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