Synthesis of thionaphthalimides and their dual Hg2+-selective signaling by desulfurization of thioimides
- Authors
- Moon, Jung Ok; Choi, Myung Gil; Sun, Taihao; Choe, Jong-In; Chang, Suk-Kyu
- Issue Date
- Jan-2013
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Hg2+ ion; Colorimetry; Fluorogenic signaling; Desulfurization; Thionaphthalimide; Ratiometry
- Citation
- DYES AND PIGMENTS, v.96, no.1, pp 170 - 175
- Pages
- 6
- Journal Title
- DYES AND PIGMENTS
- Volume
- 96
- Number
- 1
- Start Page
- 170
- End Page
- 175
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/14965
- DOI
- 10.1016/j.dyepig.2012.08.007
- ISSN
- 0143-7208
- Abstract
- A series of new thionaphthalimide derivatives were prepared, and their Hg2+-selective signaling behavior was investigated in aqueous acetonitrile solution. A monothionaphthalimide (anti) exhibited pronounced Hg2+-selective chromogenic signaling behavior through a solution color change from red to yellow, which was easily detectable by eye. It (anti) also showed prominent off-on type Hg2+-selective fluorescent signaling behavior. The signaling is due to the Hg2+-assisted desulfurization of the thioimide to its imide structure. The presence of other common metal ions did not interfere with the Hg2+-signaling of the monothionaphthalimide (anti). The detection limit of monothionaphthalimide (anti) for the determination of Hg2+ ions in 30% aqueous acetonitrile was estimated to be 2.7 mu M. (C) 2012 Elsevier Ltd. All rights reserved.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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