Fluorogenic Hg2+-Selective Chemodosimeter Derived from 8-Hydroxyquinoline

A new thioamide derivative of 8-hydroxyquinoline-benzothiazole was prepared, and its fluorogenic chemodosimetric behaviors toward transition-metal ions were investigated. The thioamide derivative showed highly Hg2+-selective fluorescence enhancing properties (167-fold) in 30% aqueous acetonitrile so...

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Bibliographic Details
Published in:Organic letters 2006-08, Vol.8 (16), p.3413-3416
Main Authors: Song, Ki Cheol, Kim, Jun Soo, Park, Sang Mi, Chung, Kee-Choo, Ahn, Sangdoo, Chang, Suk-Kyu
Format: Article
Language:English
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Summary:A new thioamide derivative of 8-hydroxyquinoline-benzothiazole was prepared, and its fluorogenic chemodosimetric behaviors toward transition-metal ions were investigated. The thioamide derivative showed highly Hg2+-selective fluorescence enhancing properties (167-fold) in 30% aqueous acetonitrile solution. The selective and sensitive signaling behaviors were found to originate from the Hg2+ ion induced transformation of the very weak fluorescent thioamide derivative into a highly fluorescent amide analogue.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol060788b