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Bis-Schiff base as a donor–acceptor fluorescent probe: Recognition of Al3+ ions in near 100% aqueous solution

Paper ID Volume ID Publish Year Pages File Format Full-Text
25852 43891 2015 6 PDF Available
Title
Bis-Schiff base as a donor–acceptor fluorescent probe: Recognition of Al3+ ions in near 100% aqueous solution
Abstract

•A novel bis-Schiff base fluorescent probe for Al3+ has been designed and synthesized.•The probe for Al3+ shows significant fluorescence enhancement accompany with about 40 nm blue shift on the basis of the mechanism of ICT.•The detection limit for Al3+ reached at 10−7 M level in 100% aqueous solution.

In this paper, a novel bis-Schiff base fluorescent probe (HL) for Al3+ has been designed and synthesized on the basis of the mechanism of internal charge transfer (ICT). Compared with the free receptor, the fluorescence intensity of HL shows significant fluorescence enhancement accompany with about 40 nm blue shift in the presence of Al3+. More importantly, the lowest detection limit for Al3+ can reach at 10−7 M level in near 100% aqueous solution.

Graphical abstractUpon addition of Al3+, compared with the free receptor, the fluorescence intensity of HL shows significant fluorescence enhancement accompany with about 40 nm blue shift in the presence of Al3+, the reasons for this phenomenon are attributed to forms 1:1 complex which inhibit internal charge transfer process.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Bis-Schiff base; Fluorescent probe; Al3+; Internal charge transfer
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Bis-Schiff base as a donor–acceptor fluorescent probe: Recognition of Al3+ ions in near 100% aqueous solution
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volumes 303–304, 15 April–1 May 2015, Pages 99–104
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us