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| Verfasst von: | Zhou, Zheng [VerfasserIn]  |
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| | Zhu, Yikun [VerfasserIn] |
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| | Wei, Zheng [VerfasserIn] |
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| | Bergner, John [VerfasserIn] |
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| | Neiß, Christian [VerfasserIn] |
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| | Doloczki, Susanne [VerfasserIn] |
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| | Görling, Andreas [VerfasserIn] |
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| | Kivala, Milan [VerfasserIn] |
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| | Petrukhina, Marina A. [VerfasserIn] |
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| Titel: | Reduction of π-expanded cyclooctatetraene with lithium |
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| Titelzusatz: | stabilization of the tetra-anion through internal Li+ coordination |
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| Verf.angabe: | Zheng Zhou, Yikun Zhu, Zheng Wei, John Bergner, Christian Neiß, Susanne Doloczki, Andreas Görling, Milan Kivala, and Marina A. Petrukhina |
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| Jahr: | 2021 |
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| Umfang: | 5 S. |
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| Fussnoten: | First published: 27 October 2020 ; Im Titel ist das Pluszeichen bei "Li" hochgestellt ; Gesehen am 18.09.2021 |
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| Titel Quelle: | Enthalten in: Angewandte Chemie. International edition |
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| Ort Quelle: | Weinheim : Wiley-VCH, 1998 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 60(2021), 7, Seite 3510-3514 |
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| ISSN Quelle: | 1521-3773 |
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| Abstract: | The chemical reduction of a π-expanded polycyclic framework comprising a cyclooctatetraene moiety, octaphenyltetrabenzocyclooctatetraene, with lithium metal readily affords the corresponding tetra-anion instead of the expected aromatic dianion. As revealed by X-ray crystallography, the highly contorted tetra-anion is stabilized by coordination of two internally bound Li+, while two external cations remain solvent separated. The variable-temperature 7Li NMR spectra in THF confirm the presence of three types of Li+ ions and clearly differentiate internal binding, consistent with the crystal structure. Density-functional theory calculations suggest that the formation of the highly charged tetra-reduced carbanion is stabilized through Li+ coordination under the applied experimental conditions. |
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| DOI: | doi:10.1002/anie.202013353 |
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| URL: | kostenfrei: Volltext: https://doi.org/10.1002/anie.202013353 |
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| | kostenfrei: Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202013353 |
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| | DOI: https://doi.org/10.1002/anie.202013353 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | density-functional calculations |
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| | polycycles |
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| | reduction |
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| | structure elucidation |
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| | X-ray diffraction |
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| K10plus-PPN: | 1770926968 |
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| Verknüpfungen: | → Zeitschrift |
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| Lokale URL UB: |  Zum Volltext |
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Reduction of π-expanded cyclooctatetraene with lithium / Zhou, Zheng [VerfasserIn]; 2021 (Online-Ressource)
