Opening a filled cage: Under an aerobic atmosphere, the reaction of Ih-Sc3[email protected]80 with 4,5-diisopropoxybenzyne generated in situ afforded an unprecedented open-cage metallofullerene with an oxygen atom and a benzyne addend spanning a 13-membered orifice (see picture, green; N blue, Sc pink, C black, O red, H white).
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Wang et al. (2011) studied this question.
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