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Ratiometric chemosensing of Mg2+ ions by a calix[4]arene diamide derivative
- Issue Date
- Jul-2007
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Mg(2+-)selective chemosensor; ratiometry; calix[4]arene; fluoroionophore
- Citation
- TETRAHEDRON LETTERS, v.48, no.31, pp 5397 - 5400
- Pages
- 4
- Journal Title
- TETRAHEDRON LETTERS
- Volume
- 48
- Number
- 31
- Start Page
- 5397
- End Page
- 5400
- ISSN
- 0040-4039
- Abstract
- A new chemosensor with a phenanthroimidazole subunit based upon calix[41arene-diamide has been synthesized, and its Mg2+ -selective fluoroionophoric properties were investigated in an aqueous DMSO solution. The compound exhibited a pronounced Mg2+ -selective fluoroionophoric behavior over other physiologically relevant metal ions. A significant red shift in fluorescence emission (Delta lambda = 86 nm) provided the ratiometric determination as well as naked-eye detection of Mg2+ ions. (c) 2007 Elsevier Ltd. All rights reserved.
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