| Autor: |
E. Laukhina, Elena, P. Bubnov, Vyacheslav, I. Estrin, Yakov, A. Golod, Yurii, A. Khodorkovskii, Mikhail, K. Koltover, Vitali, B. Yagubskii, Eduard |
| Zdroj: |
Journal of Materials Chemistry; April 1998, Vol. 8 Issue: 4 p893-895, 3p |
| Abstrakt: |
We have developed a novel proficient method of extraction of endohedral metallofullerenes from fullerene-containing soots. The method consists of two extraction steps. In the first step,o-xylene is used to extract empty fullerenes from the soot. In the second step, the same soot is extracted by polar solvent N,N-dimethylformamide. This method has been applied for isolation of endohedral La- and Y-fullerenes from the soots obtained in the electric-arc reactor. The resultant DMF extracts contain virtually no C60 , C70 or other empty fullerenes. The yield of the DMF extracts reaches 1% of the primary soot mass. The simple extraction method developed here enables production of large amounts of concentrated M@C2n. |
| Databáze: |
Supplemental Index |
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