Selective Chemosensing of Hg 2+ Ions by Diazatetrathia-crown Ether Having Nitrobenzoxadiazolyl Subunits
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DOI: 10.5012/BKCS.2006.27.10.1553
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摘要: A diazatetrathia crown ether derivative that has two appended nitrobenzoxadiazolyl moieties showed selective OFF-ON type fluoroionophoric signaling properties toward Hg2+ ions over other transition metal ions. The compound also exhibited a pronounced chromogenic behavior by changing the solution color from light orange to yellow, which can easily be detected with naked-eye. detection limit for analysis of in 90% aqueous acetonitrile was found 4.8??10-6 M, suggests may used as chemosensor analyzing sub-millimolar environments.
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