Jia, Xiangqing, Nitsch, Jörn, Wu, Zhu, Friedrich, Alexandra, Krebs, Johannes, Krummenacher, Ivo, Fantuzzi, Felipe, Braunschweig, Holger, Moos, Mchael, Lambert, Christoph, and others. (2021) One- and two-electron reduction of triarylborane-based helical donor–acceptor compounds. Chemical Science, 12 (35). pp. 11864-11872. ISSN 2041-6520. E-ISSN 2041-6539. (doi:10.1039/D1SC02409D) (KAR id:96290)
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Language: English 
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| Official URL: https://doi.org/10.1039/D1SC02409D |
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Abstract
One-electron chemical reduction of 10-(dimesitylboryl)-N,N-di-p-tolylbenzo[c]phenanthrene-4-amine (3-B(Mes)2-[4]helix-9-N(p-Tol)2) 1 and 13-(dimesitylboryl)-N,N-di-p-tolyldibenzo[c,g]phenanthrene-8-amine (3-B(Mes)2-[5]helix-12-N(p-Tol)2) 2 gives rise to monoanions with extensive delocalization over the annulated helicene rings and the boron pz orbital. Two-electron chemical reduction of 1 and 2 produces open-shell biradicaloid dianions with temperature-dependent population of the triplet states due to small singlet-triplet gaps. These results have been confirmed by single-crystal X-ray diffraction, EPR and UV/vis-NIR spectroscopy, and DFT calculations.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1039/D1SC02409D |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Divisions > Division of Natural Sciences > Chemistry and Forensics |
| Depositing User: | Felipe Fantuzzi |
| Date Deposited: | 18 Aug 2022 09:03 UTC |
| Last Modified: | 19 Aug 2022 09:09 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/96290 (The current URI for this page, for reference purposes) |
| Jia, Xiangqing: |  https://orcid.org/0000-0003-4942-4675 |
| Friedrich, Alexandra: | https://orcid.org/0000-0002-1411-7336 |
| Krummenacher, Ivo: | https://orcid.org/0000-0001-9537-1506 |
| Fantuzzi, Felipe: | https://orcid.org/0000-0002-8200-8262 |
| Braunschweig, Holger: | https://orcid.org/0000-0001-9264-1726 |
| Lambert, Christoph: | https://orcid.org/0000-0002-9652-9165 |
| Engels, Bernd: | https://orcid.org/0000-0003-3057-389X |
| Marder, Todd B.: | https://orcid.org/0000-0002-9990-0169 |
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