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Synthesis of Thiosemicarbazone Derivatives of Benzo-15-crown-5 and Their Anion Recognition Properties.
- Source :
-
Phosphorus, Sulfur & Silicon & the Related Elements . Jun2008, Vol. 183 Issue 6, p1478-1488. 11p. 1 Diagram, 2 Charts, 6 Graphs. - Publication Year :
- 2008
-
Abstract
- A series of thiosemicarbazone derivatives of benzo-15-crown-5 were synthesized efficiently at room temperature using hydrogenchloride acid (HCl) as catalyst. Their anion recognition properties of a, b and c were studied, the result show they exhibit highly selective binding and sensing of F-, MeCO2- and n-C3H7CO2- in CH3CN (F- > n-C3H7CO2- > MeCO2- > > Cl-, Br- and I-). Especially receptor c shows different UV-Vis spectrum of F- from MeCO2-and C3H7CO2-, in addition to the color of the solution change from colorless to yellow upon the addition of F-, these two points make it suitable to be used as colorimetric anion sensor to identify fluoride anion from other halide anions and carboxylate anions by naked-eye. The connection between receptor and anion is by hydrogen bonding interactions, the binding ratio is 1:1, which have been confirmed by UV-vis inspection spectra in CH3CN and 1HMR in DMSO-d6. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10426507
- Volume :
- 183
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Phosphorus, Sulfur & Silicon & the Related Elements
- Publication Type :
- Academic Journal
- Accession number :
- 32745309
- Full Text :
- https://doi.org/10.1080/10426500701681631