A new heteroditopic receptor and sensor highly selective for bromide in the presence of a bound cation
The heteroditopic receptor 2 containing a crown ether and amidoferrocence groups was synthesized and the binding abilities with various anions are reported in the presence and absence of metal cations. In the presence of Na+, 2 showed positive co-operative binding towards Br-with the binding affinit...
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| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://repository.li.mahidol.ac.th/handle/123456789/16359 |
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| Institution: | Mahidol University |
| Summary: | The heteroditopic receptor 2 containing a crown ether and amidoferrocence groups was synthesized and the binding abilities with various anions are reported in the presence and absence of metal cations. In the presence of Na+, 2 showed positive co-operative binding towards Br-with the binding affinity Kass= 16,096 M-1. Therefore, receptor 2 showed a switched-on binding for Br-in the presence of Na+and a switched-off binding in the absence of Na+. Compound 2 was also found to sense Cl-and Br-electrochemically. © 2005 Elsevier Ltd. All rights reserved. |
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