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...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2019
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| In: |
Angewandte Chemie. International edition
Year: 2018, Volume: 58, Issue: 11, Pages: 3616-3619 |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201812989 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1002/anie.201812989 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201812989 
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| Author Notes: | Rezisha Maskey, Hubert Wadepohl, and Lutz Greb |
| Summary: | 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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| Item Description: | First published: 10 December 2018 Gesehen am 27.05.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201812989 |