Turn-on selective fluorescent probe for trivalent cations

Title
Turn-on selective fluorescent probe for trivalent cations
Authors
정광덕김현김경범송은주황인홍노진영김판기김철
Keywords
Trivalent Cations; Pearson's principle; Fluorescence Probe; PET process
Issue Date
2013-10
Publisher
Inorganic chemistry communications
Citation
VOL 36, 72-76
Abstract
A novel fluorescent sensor 1 (1 = 10-(2-(((pyridin-2-yl)methylamino)methyl)phenol)methyl-anthracene) for trivalent cations has been synthesized and characterized. Both UV-vis and fluorescence spectroscopic studies demonstrated that the new receptor 1 was highly sensitive and selective toward trivalent cations, while there was no response to monovalent and divalent cations in methanol. Upon binding with trivalent cations, the emission bands of 1 red-shifted for all the trivalent cations from 411 nm to 421 nm and their fluorescence intensities were enhanced. In particular, Fe3 + could be obviously discriminated from Fe2 +. The binding modes of 1 and the trivalent cations (M3 + ions) were found to be 1:1 and confirmed by Job plot, 1H NMR titration and ESI-mass spectrometry analysis.
URI
http://pubs.kist.re.kr/handle/201004/46476
ISSN
13877003
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KIST Publication > Article
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