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http://nopr.niscpr.res.in/handle/123456789/30696| Title: | Synthesis, optical spectral studies of photoemmitive benzopyranone crown ether and its application for metal ion extraction |
| Authors: | Mashraqui, Sabir H Vashi, Dhaval Subramanian, S |
| Keywords: | Fluoroionophore;Metal ion extraction;UV-visible;Fluorescence |
| Issue Date: | May-2006 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | Int.Cl.8 C 07 D |
| Abstract: | Synthesis of a new photoemmitive, benzopyranone 15-crown-5 (1) has been reported starting from 2-formyl benzo-15- crown-5 by using a straightforward protocol. Metal ion extraction profile revealed 1 to extract K+ more selectively over Na+ and Li+ compared to the known benzo-15-crown-5. However, except for slight enhancements (8 to 27%) in the emission intensities, no appreciable changes either in the absorption or emission spectra of 1 were noticeable in the presence of selected group I and II metal ions. The absence of significant optical perturbations suggests at best only weak interaction between the metal ions and the benzopyranone chromophore. |
| Page(s): | 1269-1273 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.45B(05) [May 2006] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 45B(5) 1269-1273.pdf | 1.06 MB | Adobe PDF | View/Open |
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