Process for preparing alkali metal-doped fullerenes

摘要

Superconducting, metal-doped fullerenes are provided, along with processes for their preparation in relatively high stoichiometric purity. In one embodiment, the processes provide fullerenes of the formula M3C60 where M is an alkali metal. The processes comprise contacting C60 with alkali metal in an amount and under reaction conditions effective to produce a compound having the formula MyC60, where y is greater than 3, and contacting said MyC60 with a portion of C60 in an amount and under reaction conditions effective to produce said M3C60.