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United States Patent 5,324,495
GorunJun. 28, 1994

Method of making metal fulleride

Inventors: Gorun; Sergiu M. (Upper Montclair, NJ).
Assignee: Exxon Research and Engineering Company (Florham Park, NJ).
Appl. No.: 134,502
Filed: Oct. 8, 1993

Intl. Cl.:H01L 39/24; H01L 39/12; C01B 31/00;
U.S. Cl.:423/439.; 252/62.51;
Field of Search:445 B;414;DIG. 39

References Cited

U.S. Patent Documents
5,223,479Jun., 1993McCavey, Jr. et al. 505/ 1

Foreign Patent Documents
1587000Aug., 1990SUX

Other References

Primary Examiner: Lewis; Michael
Assistant Examiner: Kalinchak; Stephen G.

Abstract

The present invention relates to a new process for making metal fulleride compositions having the formula A(n) (C(x))(m), wherein A is a metal cation and C(x) is a fullerene anion, preferably C(x) is C(60) or C(70), wherein n is a number equal to the absolute value of the valence of the fullerene anion, wherein m is equal to the absolute value of the valence of A, wherein the values of n and m are divided by their greatest common factor, if any, and wherein the metal fulleride composition is neutral in charge. This process comprises reacting a metal with a fullerene in a solvent or mixture of solvents in which the fullerene is at least partly soluble at a temperature from greater than the freezing point to equal to or less than the boiling point of the solvent, for a time sufficient to form the metal fulleride composition. The process has utility in making metal fulleride compositions which may be used as electrode material in reversible electrochemical cells, superconductors, spin labels, magnetic thermometers, organic and polymer precursors.

6 Claims, No Drawings


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