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http://nopr.niscpr.res.in/handle/123456789/20820| Title: | Synthesis of a new cesium selective calix[4]arene based chromoionophore |
| Authors: | Arora, V Chawla, H M Francis, T Nanda, M Singh, S P |
| Issue Date: | Dec-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A novel azo-pyridyl calix[4]arene, (5,11, 17,23-tetrakis(4'-azopyridyl)-25,26,27,28-tetrahydroxycalix[4]arene), has been synthesized in the 1,3-alternate conformation by coupling debutylated calix[4]arene with a diazotized solution of 4-aminopyridine. The synthesized chromoionophore gives a large bathochromic shift (119 nm) with an increase in the intensity of absorption on addition of a methanolic solution of CS2CO3. The selectivity coefficients for Cr3+ and Ni2+ has been determined to be Kcr3+, Cs+ = 6.6 and KNi2+ , Cs+ = 66, while other alkali and alkaline earth metal ions do not interfere. The synthesized calixarene derivative has the potential to be used for development of ionic filters. |
| Page(s): | 3041-3043 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.42A(12) [December 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 42A(12) 3041-3043.pdf | 744.37 kB | Adobe PDF | View/Open |
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