title: A new isoindoline-based highly selective "turn-on" fluorescent chemodosimeter for detection of mercury ion.
abstract: A new isoindoline-based highly efficient turn-on fluorescent chemodosimeter S with a thioamide functionality as a binding site for selective detection of Hg2+ion has been developed. The chemodosimeter S showed an extreme selectivity for detection of Hg2+ion among various two and three-valent metal ions in acetonitrile/water (70/30, v/v). It was found that, in the presence of Hg2+ion the non-fluorescent chemodosimeter S was efficiently and rapidly desulfurized to the corresponding highly fluorescent amide 1. A good linear relationship was shown between the fluorescence intensity and the concentration of Hg2+within the range of 0-1μM, with a detection limit of 2.03×10-8M.
authors.affiliation: Department of Chemistry, University of Isfahan, 81746-73441 Isfahan, Iran. Electronic address: h.zali@chem.ui.ac.ir.
authors.forename: Hassan
authors.initials: H
authors.lastname: Zali-Boeini
authors.affiliation: Department of Chemistry, University of Isfahan, 81746-73441 Isfahan, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Zareh Jonaghani
authors.affiliation: Department of Chemistry, University of Isfahan, 81746-73441 Isfahan, Iran.
authors.forename: Negar
authors.initials: N
authors.lastname: Fadaei
authors.affiliation: Department of Chemistry, University of Isfahan, 81746-73441 Isfahan, Iran.
authors.forename: Hadi Amiri
authors.initials: HA
authors.lastname: Rudbari
keywords: Chemodosimeter; Fluorescent; Mercury ion; Thioamide