A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling.
A dithiophene rotaxane 1 subsetbeta-CD and its shape-persistent corresponding dumbbell 1 were synthesized and fully characterized. 2D NOESY experiments, supported by molecular dynamics calculations, revealed a very mobile macrocycle (beta-CD). Steady-state and time-resolved photoluminescence experim...
| Главные авторы: | , , , , , , , , , , |
|---|---|
| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
2010
|
| _version_ | 1826281901169573888 |
|---|---|
| author | Zalewski, L Wykes, M Brovelli, S Bonini, M Breiner, T Kastler, M Dötz, F Beljonne, D Anderson, H Cacialli, F Samorì, P |
| author_facet | Zalewski, L Wykes, M Brovelli, S Bonini, M Breiner, T Kastler, M Dötz, F Beljonne, D Anderson, H Cacialli, F Samorì, P |
| author_sort | Zalewski, L |
| collection | OXFORD |
| description | A dithiophene rotaxane 1 subsetbeta-CD and its shape-persistent corresponding dumbbell 1 were synthesized and fully characterized. 2D NOESY experiments, supported by molecular dynamics calculations, revealed a very mobile macrocycle (beta-CD). Steady-state and time-resolved photoluminescence experiments in solution were employed to elucidate the excited-state dynamics for both systems and to explore the effect of cyclodextrin encapsulation. The photoluminescence (PL) spectrum of 1 subsetbeta-CD was found to be blueshifted with respect to the dumbbell 1 (2.81 and 2.78 eV, respectively). Additionally, in contrast to previous observations, neither PL spectra nor the decay kinetics of both threaded and unthreaded systems showed changes upon increasing the concentration or changing the polarity of the solutions, thereby providing evidence for a lack of tendency toward aggregation of the unthreaded backbone. |
| first_indexed | 2024-03-07T00:35:46Z |
| format | Journal article |
| id | oxford-uuid:81579078-f45e-4e96-8c03-f2f896b80b8f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:35:46Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:81579078-f45e-4e96-8c03-f2f896b80b8f2022-03-26T21:29:45ZA conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:81579078-f45e-4e96-8c03-f2f896b80b8fEnglishSymplectic Elements at Oxford2010Zalewski, LWykes, MBrovelli, SBonini, MBreiner, TKastler, MDötz, FBeljonne, DAnderson, HCacialli, FSamorì, PA dithiophene rotaxane 1 subsetbeta-CD and its shape-persistent corresponding dumbbell 1 were synthesized and fully characterized. 2D NOESY experiments, supported by molecular dynamics calculations, revealed a very mobile macrocycle (beta-CD). Steady-state and time-resolved photoluminescence experiments in solution were employed to elucidate the excited-state dynamics for both systems and to explore the effect of cyclodextrin encapsulation. The photoluminescence (PL) spectrum of 1 subsetbeta-CD was found to be blueshifted with respect to the dumbbell 1 (2.81 and 2.78 eV, respectively). Additionally, in contrast to previous observations, neither PL spectra nor the decay kinetics of both threaded and unthreaded systems showed changes upon increasing the concentration or changing the polarity of the solutions, thereby providing evidence for a lack of tendency toward aggregation of the unthreaded backbone. |
| spellingShingle | Zalewski, L Wykes, M Brovelli, S Bonini, M Breiner, T Kastler, M Dötz, F Beljonne, D Anderson, H Cacialli, F Samorì, P A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title | A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title_full | A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title_fullStr | A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title_full_unstemmed | A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title_short | A conjugated thiophene-based rotaxane: synthesis, spectroscopy, and modeling. |
| title_sort | conjugated thiophene based rotaxane synthesis spectroscopy and modeling |
| work_keys_str_mv | AT zalewskil aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT wykesm aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT brovellis aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT boninim aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT breinert aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT kastlerm aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT dotzf aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT beljonned aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT andersonh aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT caciallif aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT samorip aconjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT zalewskil conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT wykesm conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT brovellis conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT boninim conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT breinert conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT kastlerm conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT dotzf conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT beljonned conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT andersonh conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT caciallif conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling AT samorip conjugatedthiophenebasedrotaxanesynthesisspectroscopyandmodeling |