One-electron oxidation is generally expected to weaken a bond in a molecule or, on rare occasions, break it. Removing one electron from a small propellane cage has now been shown to break three lateral bonds, opening it up into an acyclic cation after a cascade of rearrangements, initiated by vibronic coupling.
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Hiberty, P. Cage-breaking cascade. Nature Chem 3, 96–97 (2011). https://doi.org/10.1038/nchem.971
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DOI: https://doi.org/10.1038/nchem.971
