Direct evidence for a carbon–carbon one-electron σ-bond
Abstract
Covalent bonds share electron pairs between two atoms and make up the skeletons of most organic compounds in single, double and triple bonds. In contrast, examples of one-electron bonds remain scarce, most probably due to their intrinsic weakness. Although several pioneering studies have reported one-electron bonds between heteroatoms, direct evidence for one-electron bonds between carbon atoms remains elusive. Here we report the isolation of a compound with a one-electron σ-bond between carbon atoms by means of the one-electron oxidation of a hydrocarbon with an elongated C–C single bond. The presence of the C•C one-electron σ-bond (2.921(3) Å at 100 K) was confirmed……
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Article inforamation
Shimajiri, T., Kawaguchi, S., Suzuki, T. et al. Direct evidence for a carbon–carbon one-electron σ-bond. Nature (2024).
DOI: 10.1038/s41586-024-07965-1
