| Autor: |
S. Chandramouleeswaran, Sandip Kumar Nayak, Jayshree Ramkuma, A. Kumar |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Organic Communications, Vol 10, Iss 4, Pp 304-313 (2017) |
| ISSN: |
1307-6175 |
| Popis: |
This article describes one-step synthesis of a singly bridged biscalix[6]arene ( 2 ) and evaluation of its recognition properties towards alkali metal ions for the first time. Synthesis of 2 was accomplished through coupling of two 4-tert-butylcalix[6]arene units with one molecule of diethyleneglycol ditosylate. Both base and linker were found to play a role in the outcome of coupling reaction for the simple and efficient synthesis of 2 . Complexation ability of 2 was studied by liquid-liquid extraction using alkali metal (Na +, K +, Cs +) picrates. Carrier activity of 2 towards the facilitated transport of alkali metal ions across a bulk liquid membrane was also studied and the transport behaviour was mechanistically explained. The predominant role of an ion exchange action mechanism in the transport process was observed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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