Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1389163 | Carbohydrate Research | 2011 | 4 Pages |
Abstract
A sugar-aza-crown ether (SAC)-based fluorescent sensor 4 was prepared. It contains a pyrene as the fluorophore and its fluoroionophoric properties toward transition metal ions were investigated. Chemosensor 4 exhibits highly selective recognition toward Cu2+ and Hg2+ ions among a series of tested metal ions in methanol solution. The association constants for 4*Cu2+ and 4*Hg2+ in methanol solution were calculated to be 7.4 × 101 M−1 and 4.4 × 103 M−1, respectively. Chemosensor 4 formed complexes with the Cu2+ or Hg2+ ion at a 1:1 ligand-to-metal ratio with a detection limit of 1.3 × 10−4 M Cu2+ and 1.26 × 10−5 M Hg2+, respectively.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Yu-Chi Hsieh, Jiun-Ly Chir, Shih-Tse Yang, Shau-Jiun Chen, Ching-Han Hu, An-Tai Wu,