Abstract
Two isomers of the cross-fullerene dimer, i.e., [(C60 )(C70 )], were synthesized in the solid state, isolated by recycling high performance liquid
chromatography and characterized by mass spectrometry and UV/Vis absorption spectroscopy.
The observed inability to produce a similarly dimerized endohedral metallofullerene,
(La@C82 )2 , strongly suggests the dimerization mechanism of a nucleophilic addition from the
additive material to the carbon cage and at the final step of an intramolecular SN 2’ reaction that connects the two fullerene cages.
Key words
fullerene - dimerization - solid-phase synthesis - endohedral metallofullerene - reaction
mechanism
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[1
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