| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5270205 | Tetrahedron Letters | 2014 | 6 Pages |
Abstract
The present article describes design and synthesis of coumarin derived chemical reaction based chemodosimeter to recognize cyanide in aqueous medium. The Michael acceptor type coumarin derived probes 3 and 4 upon interaction with cyanide undergo Michael type nucleophilic addition reaction to form adducts in which fluorescence intensity was significantly enhanced, 'turn-on' by the change in intramolecular charge transfer (ICT) mechanism. The nonfluorescent color of solutions changed to a naked-eye sensitive fluorescent blue (switched-on). Job's plot analysis revealed a 1:1 stoichiometry for the interaction between the probe and cyanide anion with a high detection limit.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Syed S. Razi, Rashid Ali, Priyanka Srivastava, Arvind Misra,