A new macrocyclic ligand as a turn-on fluorescent chemosensor for the recognition of Pb2+ ions. (26th September 2017)

• Record Type: Journal Article
• Authors: Azadbakht, Reza; Hakimi, Mohammad; Khanabadi, Javad; Amiri Rudbari, Hadi
• Is Part Of: New journal of chemistry. Volume 41:Number 20(2017)
• Page Start: 12198
• Page End: 12204
• Publication Date: 2017-09-26
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj02873c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The chemosensor L has a detection limit of 9.63 nM for Pb 2+ in an acetonitrile/H2 O (9 : 1, v/v) mixture. Abstract : A new asymmetric macrocyclic ligand was synthesized and characterized by NMR studies, X-ray diffraction and mass spectroscopy. Based on the photoinduced electron transfer (PET) fluorescence enhancement mechanism, the ligand has been successfully used for the efficient detection of Pb 2+ in aqueous buffer media (pH 7.4). The detection limit of Pb 2+ is up to 9.63 × 10 −10 M.