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A simple colorimetric and ON–OFF fluorescent chemosensor for biologically important anions based on amide moieties
- Source :
-
Journal of Photochemistry & Photobiology B: Biology . Apr2009, Vol. 95 Issue 1, p1-5. 5p. - Publication Year :
- 2009
-
Abstract
- Abstract: A simple colorimetric and fluorescent anion chemosensor based on amide moieties, 6-nitro-1,4-dihydroquinoxaline-2,3-dione has been designed, synthesized and characterized by 1H NMR, ESI-MS and elemental analyses. The strong basic anions such as F− and AcO− resulted in significant decrease in fluorescent emission intensity of the compound 1, accompanied synchronously with a dramatic color change from colorless to deep yellow in organic medium. 1H NMR titration experiments shed light on the nature of the interactions between 1 and the anions. [Copyright &y& Elsevier]
- Subjects :
- *COLORIMETRIC analysis
*MOIETIES (Chemistry)
*EMISSION exposure
*ANIONS
Subjects
Details
- Language :
- English
- ISSN :
- 10111344
- Volume :
- 95
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Photochemistry & Photobiology B: Biology
- Publication Type :
- Academic Journal
- Accession number :
- 37159533
- Full Text :
- https://doi.org/10.1016/j.jphotobiol.2008.12.007