| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 746214 | Sensors and Actuators B: Chemical | 2010 | 9 Pages |
Abstract
New fluorescent sensors 6, 7 and 9 based on calix[4]arenes have been synthesized and examined for their binding abilities towards different metal ions (Li+, Na+, K+, Pb2+, Zn2+, Hg2+ and Ag+) by UV and fluorescence spectroscopy. Two of these receptors (6 and 7) show ratiometric sensing while the third receptor (9) shows ‘On–Off’ signaling of Pb2+ ion among the various metal ions tested. The stoichiometry of the complexation was found to be 1:1 as established by Job's plot.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
![Ratiometric/‘On–Off’ sensing of Pb2+ ion using pyrene-appended calix[4]arenes](/preview/png/746214.png "First Page Preview: Ratiometric/‘On–Off’ sensing of Pb2+ ion using pyrene-appended calix[4]arenes")
Authors
Manoj Kumar, J. Nagendra Babu, Vandana Bhalla, Rajesh Kumar,