A “Turn-On” Fluorescent Sensor for Selective Hg(II) Detection in Aqueous Media Based on Metal-Induced Dye Formation

Abstract

A Hg-promoted desulfurization reaction of a thiocarbazone derivative was introduced in the design of a fluorescent sensor for selective Hg(II) detection. Crystal structural and spectroscopic investigations demonstrated the formation of a triazanaphthalene ring and the "turn-on" responding for Hg(II) in aqueous media.