ORGN 462 |
| Because of wide application in biological and environmental assays, development of anion binding sensors is emerging as significant area of research. Of particular interest are optical sensors because sensing event is related with an easy-to-measure signal. A series of novel derivatives with salicylidene moiety as anion binding site were synthesized and analyzed as anion sensors. The absorption and emission spectra of these derivatives were found to show unprecedented red shifts in wavelength in presence of F-, AcO- and H2PO4- anions depending on the extent of conjugation. The sensors showed significant change in presence of F- as compared to other ions based on the absorption and emission intensities and binding constants calculations. Effects of protic solvents confirmed the formation of hydrogen-bonding complexes between the new salcylidene derivatives and anions. It was observed that the sensors showed significant anion binding performance and therefore represent important class of compound in anion sensing and recognition. |
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Bioorganic, Metal-Mediated Reactions, and Molecular Recognition
8:00 PM-10:00 PM, Tuesday, 30 August 2005 Washington DC Convention Center -- Hall A, Poster
Division of Organic Chemistry |