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The [1,5] sigmatropic migration of hydrogen in the adduct between buckminsterfullerene C60 and morpholine (Hmorph) is fast at −25°C already. Elemental analysis, thermogravimetry, IR and NMR spectroscopy, and cyclic voltammetry all support the formulation of the adduct as C60H6 (morph)6. The amine is covalently added to six pyracylene units. The small activation barrier to the migration is astounding, especially as large changes in the C60 framework are involved.