| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5267658 | Tetrahedron Letters | 2012 | 4 Pages |
Abstract
A urea-based fluoride anion indicator, 3, that functions in mixed aqueous media is reported. Under these conditions, indicator 3 and the two control systems 1 and 2 are colorless. Addition of fluoride anions produces an easy-to-visualize colorimetric response (colorless to yellow) in the case of 3, but not 1 or 2 as the result of anion-induced Si-O bond cleavage. Most of the colorimetric response is believed to stem from an alteration in the hydrogen bonding network, rather than changes to the Ï-conjugation pathway per se.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Ananta Kumar Atta, In-Ho Ahn, Ah-Young Hong, Jungseok Heo, Chan Kyung Kim, Dong-Gyu Cho,