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Synfacts 2011(12): 1304-1304  
DOI: 10.1055/s-0031-1289391
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Delocalized Radicals

Contributor(s): Timothy M. Swager, Ggoch Ddeul Han
T. Kubo*, Y. Katada, A. Shimizu, Y. Hirao*, K. Sato, T. Takui, M. Uruichi, K. Yakushi, R. C. Haddon*
University of California, Riverside, USA; Osaka University, Osaka City University and Institute of Molecular Science, Okazaki, Japan
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Publication History

Publication Date:
18 November 2011 (online)

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Significance

The authors synthesized the hy­drocarbon radicals stabilized predominantly by a thermodynamic factor. The large extent of de­localization of an unpaired electron suppresses σ-bond formation between the radicals. Instead, the radical forms a π-dimer in the solid state via multicenter bonding of the unpaired electrons.