EPR Spectroscopy: A Powerful Tool to Analyze Supramolecular Host•Guest Complexes of Stable Radicals with Cucurbiturils
Abstract
:1. Introduction
2. Results
2.1. Complexation between TEMPONE and CB[7]
2.2. Complexation between bTbk and CB[8]
3. Discussion
4. Materials and Methods
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample Availability: Samples of the compounds are available from the authors. |
TEMPONE | TEMPONE•CB[7] | |
---|---|---|
g | 2.0055 a | 2.0060 a |
aN/G | 15.99 ± 0.05 b | 15.29 ± 0.05 b |
aC/G | 6.0 ± 0.5 b | 4.7 ± 0.5 b |
Wahh/G | 0.82 ± 0.05 a | 0.96 ± 0.06 a |
I-/I0 | 0.92 a | 0.85 a |
Ka/M−1 | - | 4510 ± 500 b |
bTbk | bTbk•CB[8] | |
---|---|---|
g | 2.0055 a | 2.0056 a |
aN/G | 16.59 ± 0.05 b | 16.25 ± 0.05 and 16.59 ± 0.05 b |
aC/G | 5.8 ±0.5 b | 6.0 ± 0.5 and 5.8 ± 0.5 b |
Wahh/G | 1.18 ± 0.05 a | 1.44 ± 0.10 a |
I-/I0 | 0.78 a | 0.67 a |
Ka 1:1 model/M−1 | - | 36 600 ±5000 M−1, b |
Ka shuttling model/M−1 | - | 20 900 ± 5000 M−1, b |
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Liu, F.; Karoui, H.; Rockenbauer, A.; Liu, S.; Ouari, O.; Bardelang, D. EPR Spectroscopy: A Powerful Tool to Analyze Supramolecular Host•Guest Complexes of Stable Radicals with Cucurbiturils. Molecules 2020, 25, 776. https://doi.org/10.3390/molecules25040776
Liu F, Karoui H, Rockenbauer A, Liu S, Ouari O, Bardelang D. EPR Spectroscopy: A Powerful Tool to Analyze Supramolecular Host•Guest Complexes of Stable Radicals with Cucurbiturils. Molecules. 2020; 25(4):776. https://doi.org/10.3390/molecules25040776
Chicago/Turabian StyleLiu, Fengbo, Hakim Karoui, Antal Rockenbauer, Simin Liu, Olivier Ouari, and David Bardelang. 2020. "EPR Spectroscopy: A Powerful Tool to Analyze Supramolecular Host•Guest Complexes of Stable Radicals with Cucurbiturils" Molecules 25, no. 4: 776. https://doi.org/10.3390/molecules25040776