Rotaxanes capable of recognising chloride in aqueous media.
A new, versatile chloride-anion-templating synthetic pathway is exploited for the preparation of a series of eight new [2]rotaxane host molecules, including the first sulfonamide interlocked system. (1)H NMR spectroscopic titration investigations demonstrate the rotaxanes' capability to selecti...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1797060037622890496 |
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| author | Hancock, L Gilday, L Carvalho, S Costa, P Félix, V Serpell, C Kilah, N Beer, P |
| author_facet | Hancock, L Gilday, L Carvalho, S Costa, P Félix, V Serpell, C Kilah, N Beer, P |
| author_sort | Hancock, L |
| collection | OXFORD |
| description | A new, versatile chloride-anion-templating synthetic pathway is exploited for the preparation of a series of eight new [2]rotaxane host molecules, including the first sulfonamide interlocked system. (1)H NMR spectroscopic titration investigations demonstrate the rotaxanes' capability to selectively recognise the chloride anion in competitive aqueous solvent media. The interlocked host's halide binding affinity can be further enhanced and tuned through the attachment of electron-withdrawing substituents and by increasing its positive charge. A dicationic rotaxane selectively binds chloride in 35% water, wherein no evidence of oxoanion binding is observed. NMR spectroscopy, X-ray structural analysis and computational molecular dynamics simulations are used to account for rotaxane formation yields, anion binding strengths and selectivity trends. |
| first_indexed | 2024-03-06T20:12:07Z |
| format | Journal article |
| id | oxford-uuid:2aecc326-d2b9-4b49-a004-548319da385e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:12:07Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:2aecc326-d2b9-4b49-a004-548319da385e2022-03-26T12:27:56ZRotaxanes capable of recognising chloride in aqueous media.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2aecc326-d2b9-4b49-a004-548319da385eEnglishSymplectic Elements at Oxford2010Hancock, LGilday, LCarvalho, SCosta, PFélix, VSerpell, CKilah, NBeer, PA new, versatile chloride-anion-templating synthetic pathway is exploited for the preparation of a series of eight new [2]rotaxane host molecules, including the first sulfonamide interlocked system. (1)H NMR spectroscopic titration investigations demonstrate the rotaxanes' capability to selectively recognise the chloride anion in competitive aqueous solvent media. The interlocked host's halide binding affinity can be further enhanced and tuned through the attachment of electron-withdrawing substituents and by increasing its positive charge. A dicationic rotaxane selectively binds chloride in 35% water, wherein no evidence of oxoanion binding is observed. NMR spectroscopy, X-ray structural analysis and computational molecular dynamics simulations are used to account for rotaxane formation yields, anion binding strengths and selectivity trends. |
| spellingShingle | Hancock, L Gilday, L Carvalho, S Costa, P Félix, V Serpell, C Kilah, N Beer, P Rotaxanes capable of recognising chloride in aqueous media. |
| title | Rotaxanes capable of recognising chloride in aqueous media. |
| title_full | Rotaxanes capable of recognising chloride in aqueous media. |
| title_fullStr | Rotaxanes capable of recognising chloride in aqueous media. |
| title_full_unstemmed | Rotaxanes capable of recognising chloride in aqueous media. |
| title_short | Rotaxanes capable of recognising chloride in aqueous media. |
| title_sort | rotaxanes capable of recognising chloride in aqueous media |
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