Silicon tris(perchloro)dioxolene: a neutral triplet diradical
The reaction of ortho-quinones with silicon tetraiodide leads to neutral silicon trisdioxolenes in high yield, delivering the unknown oxidized form of triscatecholatosilicate dianions and the first example of open-shell semiquinonates connected via a single non-metal center. Silicon tris(perchloro)d...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2019
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| In: |
Angewandte Chemie. International edition
Year: 2018, Jahrgang: 58, Heft: 11, Pages: 3616-3619 |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201812989 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1002/anie.201812989 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201812989 |
| Verfasserangaben: | Rezisha Maskey, Hubert Wadepohl, and Lutz Greb |
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| 520 | |a The reaction of ortho-quinones with silicon tetraiodide leads to neutral silicon trisdioxolenes in high yield, delivering the unknown oxidized form of triscatecholatosilicate dianions and the first example of open-shell semiquinonates connected via a single non-metal center. Silicon tris(perchloro)dioxolene is a stable diradical with a triplet ground state, as supported by X-ray diffraction; IR, resonance Raman, UV/Vis, and (VT)EPR spectroscopy; and Kohn-Sham broken-symmetry computations. Preliminary results suggest that the preferred magnetic ground state can be altered through variation of the substituents. | ||
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