Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size.
A wide range of pseudorotaxane assemblies containing positively charged pyridinium, pyridinium nicotinamide, imidazolium, benzimidazolium and guanidinium threading components, and macrocyclic isophthalamide polyether ligands have been prepared using a general anion templation procedure. In noncompet...
| Главные авторы: | , , , , , , |
|---|---|
| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
2005
|
| _version_ | 1826267163991736320 |
|---|---|
| author | Sambrook, MR Beer, P Wisner, J Paul, R Cowley, A Szemes, F Drew, MG |
| author_facet | Sambrook, MR Beer, P Wisner, J Paul, R Cowley, A Szemes, F Drew, MG |
| author_sort | Sambrook, MR |
| collection | OXFORD |
| description | A wide range of pseudorotaxane assemblies containing positively charged pyridinium, pyridinium nicotinamide, imidazolium, benzimidazolium and guanidinium threading components, and macrocyclic isophthalamide polyether ligands have been prepared using a general anion templation procedure. In noncompetitive solvent media, coupling halide anion recognition by a macrocyclic ligand with ion-pairing between the halide anion and a strongly associated cation provides the driving force for interpenetration. Extensive solution 1H NMR binding studies, thermodynamic investigations, and single-crystal X-ray structure determinations reveal that the nature of the halide anion template, strength of the ion-pairing between the anion template and the cationic threading component, and to a lesser extent favorable second sphere pi-pi aromatic stacking interactions between the positively charged threading component and macrocyclic ligand, together with macrocyclic ring size, affect the efficacy of pseudorotaxane formation. |
| first_indexed | 2024-03-06T20:50:01Z |
| format | Journal article |
| id | oxford-uuid:373f7f60-f56c-41c1-b8e4-0b662d1fa24c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:50:01Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:373f7f60-f56c-41c1-b8e4-0b662d1fa24c2022-03-26T13:42:55ZAnion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:373f7f60-f56c-41c1-b8e4-0b662d1fa24cEnglishSymplectic Elements at Oxford2005Sambrook, MRBeer, PWisner, JPaul, RCowley, ASzemes, FDrew, MGA wide range of pseudorotaxane assemblies containing positively charged pyridinium, pyridinium nicotinamide, imidazolium, benzimidazolium and guanidinium threading components, and macrocyclic isophthalamide polyether ligands have been prepared using a general anion templation procedure. In noncompetitive solvent media, coupling halide anion recognition by a macrocyclic ligand with ion-pairing between the halide anion and a strongly associated cation provides the driving force for interpenetration. Extensive solution 1H NMR binding studies, thermodynamic investigations, and single-crystal X-ray structure determinations reveal that the nature of the halide anion template, strength of the ion-pairing between the anion template and the cationic threading component, and to a lesser extent favorable second sphere pi-pi aromatic stacking interactions between the positively charged threading component and macrocyclic ligand, together with macrocyclic ring size, affect the efficacy of pseudorotaxane formation. |
| spellingShingle | Sambrook, MR Beer, P Wisner, J Paul, R Cowley, A Szemes, F Drew, MG Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title | Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title_full | Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title_fullStr | Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title_full_unstemmed | Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title_short | Anion-templated assembly of pseudorotaxanes: importance of anion template, strength of ion-pair thread association, and macrocycle ring size. |
| title_sort | anion templated assembly of pseudorotaxanes importance of anion template strength of ion pair thread association and macrocycle ring size |
| work_keys_str_mv | AT sambrookmr aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT beerp aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT wisnerj aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT paulr aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT cowleya aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT szemesf aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize AT drewmg aniontemplatedassemblyofpseudorotaxanesimportanceofaniontemplatestrengthofionpairthreadassociationandmacrocycleringsize |