Current time in Korea 01:22 Oct 20 (Fri) Year 2017 KCS KCS Publications
KCS Publications
My Journal Log In Register
HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 10
BKCSDE 27(10)
October 20, 2006 

Selective Chemosensing of Hg2+ Ions by Diazatetrathia-crown Ether Having Nitrobenzoxadiazolyl Subunits
So Hee Kim, Na Jin Youn, Ji Yeon Park, Myung Gil Choi, Suk-Kyu Chang*
Chemosensor, Fluoroionophore, Hg2+ ions, Diazatetrathia-crown ether, Nitrobenzoxadiazolyl subunit
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 toward Hg2+ ions by changing the solution color from light orange to yellow, which can easily be detected with naked-eye. The detection limit for the analysis of Hg2+ ions in 90% aqueous acetonitrile was found to be 4.8 × 10-6 M, which suggests that the compound may be used as a chemosensor for analyzing sub-millimolar Hg2+ ions in aqueous environments.
1553 - 1556
Full Text