Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor †
The first example of a heteroditopic receptor capable of cooperative recognition and extraction of ammonium salt (NH4X) ion-pairs is described. Consisting of a bidentate 3,5-bis-tellurotriazole chalcogen bond donor binding cleft, the appendage of benzo-15-crown-5 (B15C5) substituents to the telluriu...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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Royal Society of Chemistry
2024
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| _version_ | 1811139770202456064 |
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| author | Docker, A Tse, YC Tay, HM Zhang, Z Beer, PD |
| author_facet | Docker, A Tse, YC Tay, HM Zhang, Z Beer, PD |
| author_sort | Docker, A |
| collection | OXFORD |
| description | The first example of a heteroditopic receptor capable of cooperative recognition and extraction of ammonium salt (NH4X) ion-pairs is described. Consisting of a bidentate 3,5-bis-tellurotriazole chalcogen bond donor binding cleft, the appendage of benzo-15-crown-5 (B15C5) substituents to the tellurium centres facilitates binding of the ammonium cation via a co-facial bis-B15C5 sandwich complex, which serves to switch on chalcogen bonding-mediated anion binding potency. Extensive quantitative ion-pair recognition 1H NMR titration studies in CD3CN/CDCl3 (1 : 1, v/v) solvent media reveal impressive ion-pair binding affinities towards a variety of ammonium halide, nitrate and thiocyanate salts, with the heteroditopic receptor displaying notable ammonium halide salt selectivity. The prodigious solution phase NH4X recognition also translates to efficient solid–liquid and liquid–liquid extraction capabilities. |
| first_indexed | 2024-09-25T04:11:22Z |
| format | Journal article |
| id | oxford-uuid:ee33104f-4126-4aa6-9828-99c882049131 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:11:22Z |
| publishDate | 2024 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:ee33104f-4126-4aa6-9828-99c8820491312024-06-18T20:17:19ZAmmonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor †Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ee33104f-4126-4aa6-9828-99c882049131EnglishJisc Publications RouterRoyal Society of Chemistry2024Docker, ATse, YCTay, HMZhang, ZBeer, PDThe first example of a heteroditopic receptor capable of cooperative recognition and extraction of ammonium salt (NH4X) ion-pairs is described. Consisting of a bidentate 3,5-bis-tellurotriazole chalcogen bond donor binding cleft, the appendage of benzo-15-crown-5 (B15C5) substituents to the tellurium centres facilitates binding of the ammonium cation via a co-facial bis-B15C5 sandwich complex, which serves to switch on chalcogen bonding-mediated anion binding potency. Extensive quantitative ion-pair recognition 1H NMR titration studies in CD3CN/CDCl3 (1 : 1, v/v) solvent media reveal impressive ion-pair binding affinities towards a variety of ammonium halide, nitrate and thiocyanate salts, with the heteroditopic receptor displaying notable ammonium halide salt selectivity. The prodigious solution phase NH4X recognition also translates to efficient solid–liquid and liquid–liquid extraction capabilities. |
| spellingShingle | Docker, A Tse, YC Tay, HM Zhang, Z Beer, PD Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title | Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title_full | Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title_fullStr | Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title_full_unstemmed | Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title_short | Ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| title_sort | ammonium halide selective ion pair recognition and extraction with a chalcogen bonding heteroditopic receptor † |
| work_keys_str_mv | AT dockera ammoniumhalideselectiveionpairrecognitionandextractionwithachalcogenbondingheteroditopicreceptor AT tseyc ammoniumhalideselectiveionpairrecognitionandextractionwithachalcogenbondingheteroditopicreceptor AT tayhm ammoniumhalideselectiveionpairrecognitionandextractionwithachalcogenbondingheteroditopicreceptor AT zhangz ammoniumhalideselectiveionpairrecognitionandextractionwithachalcogenbondingheteroditopicreceptor AT beerpd ammoniumhalideselectiveionpairrecognitionandextractionwithachalcogenbondingheteroditopicreceptor |