Kumar, Manoj ; Babu, J. Nagendra ; Bhalla, Vandana ; Kumar, Rajesh (2010) Ratiometric/‘On–Off’ sensing of Pb2+ ion using pyrene-appended calix[4]arenes Sensors and Actuators B: Chemical, 144 (1). pp. 183-191. ISSN 0925-4005
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Related URL: http://dx.doi.org/10.1016/j.snb.2009.10.050
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Calix[4]arene; Fluorogenic; Pyrene; Imine; On–Off; Pb2+ Ion Selective |
| ID Code: | 114066 |
| Deposited On: | 18 May 2018 09:01 |
| Last Modified: | 18 May 2018 09:01 |
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