دورية أكاديمية
Selective photoinduced charge separation in perylenediimide-pillar[5]arene rotaxanes
| العنوان: | Selective photoinduced charge separation in perylenediimide-pillar[5]arene rotaxanes |
|---|---|
| المؤلفون: | Pearce, Nicholas, Reynolds, Katherine E. A., Kayal, Surajit, Sun, Xue Z., Davies, E. Stephen, Malagreca, Ferdinando, Schürmann, Christian J., Ito, Sho, Yamano, Akihito, Argent, Stephen P., George, Michael W., Champness, Neil R. |
| بيانات النشر: | Springer Science and Business Media LLC |
| سنة النشر: | 2022 |
| المجموعة: | University of Nottingham: Repository@Nottingham |
| مصطلحات موضوعية: | General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry |
| الوصف: | The ability to control photoinduced charge transfer within molecules represents a major challenge requiring precise control of the relative positioning and orientation of donor and acceptor groups. Here we show that such photoinduced charge transfer processes within homo- and hetero-rotaxanes can be controlled through organisation of the components of the mechanically interlocked molecules, introducing alternative pathways for electron donation. Specifically, studies of two rotaxanes are described: a homo[3]rotaxane, built from a perylenediimide diimidazolium rod that threads two pillar[5]arene macrocycles, and a hetero[4]rotaxane in which an additional bis(1,5-naphtho)-38-crown-10 (BN38C10) macrocycle encircles the central perylenediimide. The two rotaxanes are characterised by a combination of techniques including electron diffraction crystallography in the case of the hetero[4]rotaxane. Cyclic voltammetry, spectroelectrochemistry, and EPR spectroscopyare employed to establish the behaviour of the redox states of both rotaxanes and these data are used to inform photophysical studies using time-resolved infra-red (TRIR) and transient absorption (TA) spectroscopies. The latter studies illustrate the formation of a symmetry-breaking charge-separated state in the case of the homo[3]rotaxane in which charge transfer between the pillar[5]arene and perylenediimide is observed involving only one of the two macrocyclic components. In the case of the hetero[4]rotaxane charge separation is observed involving only the BN38C10 macrocycle and the perylenediimide leaving the pillar[5]arene components unperturbed. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://nottingham-repository.worktribe.com/output/7340526Test; Nature Communications; Volume 13; Issue 1; https://nottingham-repository.worktribe.com/file/7340526/1/Selective%20Photoinduced%20Charge%20Separation%20In%20Perylenediimide-pillar%205%20Arene%20RotaxanesTest |
| DOI: | 10.1038/s41467-022-28022-3 |
| الإتاحة: | https://doi.org/10.1038/s41467-022-28022-3Test https://nottingham-repository.worktribe.com/file/7340526/1/Selective%20Photoinduced%20Charge%20Separation%20In%20Perylenediimide-pillar%205%20Arene%20RotaxanesTest https://nottingham-repository.worktribe.com/output/7340526Test |
| حقوق: | openAccess ; https://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: | edsbas.C8F1CFAE |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41467-022-28022-3 |
|---|