An Isolable Radical Anion Based on the Borole Framework

An Isolable Radical Anion Based on the Borole Framework

Give me five! A new boron‐centered radical anion based on the borole framework is an example of a cyclic, planar, and conjugated π system hosting five electrons. Single‐crystal X‐ray analysis, EPR spectroscopy, and DFT methods indicate that the unpaired spin is delocalized within the borole ring. De...

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Veröffentlicht in:Angewandte Chemie International Edition 2012-03, Vol.51 (12), p.2977-2980
Hauptverfasser: Braunschweig, Holger, Dyakonov, Vladimir, Jimenez-Halla, J. Oscar C., Kraft, Katharina, Krummenacher, Ivo, Radacki, Krzysztof, Sperlich, Andreas, Wahler, Johannes
Format: Artikel
Sprache:eng
Schlagworte:
borates
boroles
dianions
radical ions
reduction
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Zusammenfassung:Give me five! A new boron‐centered radical anion based on the borole framework is an example of a cyclic, planar, and conjugated π system hosting five electrons. Single‐crystal X‐ray analysis, EPR spectroscopy, and DFT methods indicate that the unpaired spin is delocalized within the borole ring. Despite steric shielding by the mesityl group, the boron atom is still available for radical‐type reactions.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201108632