Journal of Photochemistry and Photobiology A: Chemistry 356 (2018) 595–602 Contents lists available at ScienceDirect Journal of Photochemistry and Photobiology A: Chemistry journal homepa ge: www.elsev ier.com/locate/jphotochem Dicationic imidazolium salts as ﬂuorescent probes for selective 3+ detection of Fe ion in pure aqueous media Shweta Chaudhary, Marilyn Daisy Milton* Department of Chemistry, University of Delhi, Delhi 110 007, India A R T I C L E I N F O A B S T R A C T Article history: Received 5 December 2017 A series of N, N’-disubstituted imidazolium salts: 3-(4-cyanobenzyl)-1-((1-(4-cyanobenzyl)pyridin-1- Received in revised form 2 February 2018 ium-3-yl)methyl)-2-methyl-1H-imidazolium bromide (1a), 3-(naphthalene-2-ylmethyl)-1-((-1-(naph- Accepted 3 February 2018 thalene-2-ylmethyl)pyridin-1-ium-3-yl)methyl)-2-methyl-1H-imidazolium bromide (1b), 3-(4-cyano- Available online 5 February 2018 benzyl)-1-((1-(4-cyanobenzyl)pyridin-1-ium-3-yl)methyl)-2-methyl-1H-imidazolium hexaﬂuorophos- phate (1c) and 3-(naphthalene-2-ylmethyl)-1-((-1-(naphthalene-2-ylmethyl)pyridin-1-ium-3-yl) Keywords: methyl)-2-methyl-1H-imidazolium hexaﬂuorophosphate (1d) were synthesized in good to excellent N,N’-disubstituted imidazolium salts yields. The physical and chemical properties of highly water soluble bromide salts (1a and 1b) were Pure aqueous media modulated by counter anion exchange with PF anion (1c and 1d). These probes detect Fe (III) ion over 3+ Fe sensor + + 2+ 2+ 2+ 3+ 2+ 2+ 2+ 3+ 2+ 3+ 2+ 2+ other metal ions such as Na , K , Ba
Journal of Photochemistry and Photobiology A: Chemistry – Elsevier
Published: Apr 1, 2018
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