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Hg2+-selective fluoroionophoric behavior of pyrene appended diazatetrathia-crown ether
- Issue Date
- Jan-2006
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- diazatetrathia-crown ether; fluoroionophore; pyrene; Hg2+-selectivity; chemosensor
- Citation
- TETRAHEDRON LETTERS, v.47, no.4, pp 497 - 500
- Pages
- 4
- Journal Title
- TETRAHEDRON LETTERS
- Volume
- 47
- Number
- 4
- Start Page
- 497
- End Page
- 500
- ISSN
- 0040-4039
- Abstract
- Bis(pyrene) derivative of diazatetrathia-crown ether has been prepared and its Hg2+-selective fluoroionophoric properties were investigated. The compound showed a pronounced Hg2+-selectivityand other metal ions except for Cu2+ showed almost no discernible responses. The Hg2+-selectivity of the compound was also confirmed by the competitive experiments performed in the presence of physiologically important metal ions and the detection limit was found to be 1.6 x 10(-6) M. The prominent selective and efficient fluorescence quenching behavior could be utilized as a new chemosensing system for the analysis of toxic Hg2+ ions in aqueous environment. (c) 2005 Elsevier Ltd. All rights reserved.
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