Journal
TETRAHEDRON LETTERS
Volume 48, Issue 31, Pages 5397-5400Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.06.010
Keywords
Mg(2+-)selective chemosensor; ratiometry; calix[4]arene; fluoroionophore
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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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