Kumar, Manoj ; Dhir, Abhimanew ; Bhalla, Vandana (2010) Switching and fluorescence signal amplification with metal ions in allosteric systems based on 1, 3-alternate thiacalix[4]crown Dalton Transactions, 39 (42). pp. 10122-10127. ISSN 1477-9226
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Official URL: http://pubs.rsc.org/en/content/articlelanding/2010...
Related URL: http://dx.doi.org/10.1039/C0DT00702A
Abstract
New thiacalix[4]crown derivatives 4 and 5 of 1,3-alternate conformation possessing anthracene and quinoline moieties respectively were synthesised and examined for their cation recognition abilities toward different cations by fluorescence spectroscopy. Selective optical recognition with fluorescence amplification was observed for Fe3+/K+ and Hg2+/K+ in chemosensors 4 and 5 respectively. Further it was observed that the formation of 4·Fe3+ complex triggers the decomplexation of K+ ion. Similar allosteric behaviour between Hg2+ and K+ was observed in chemosensor 5.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 114050 |
| Deposited On: | 16 May 2018 04:34 |
| Last Modified: | 16 May 2018 04:34 |
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