Metal-doped fullerenes and synthetic methods therefor

Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Producing fullerene type superconductor or analog thereof

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505725, 505775, 505810, 505815, 252500, 252518, 423414, 423439, 423445B, H01L 3924, H01L 3912, C01B 3100

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053489365

ABSTRACT:
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 M.sub.x C.sub.q, where M is a metal, x is greater than 0 but less than about 10, and q is at least 60. The processes comprise contacting C.sub.q with metal in an amount and under reaction conditions effective to produce a compound having the formula M.sub.y C.sub.q, and contacting said M.sub.y C.sub.q with a portion of C.sub.q in an amount and under reaction conditions effective to produce said M.sub.x C.sub.q, wherein y is greater than x.

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