Purification of C70 using charcoal as a stationary phase in a flash chromatography column. Technical report
Described is a method for the purification of C60 and C70 using a flash chromatography column that contains charcoal as the stationary phase. A number of functionalized aromatic solvents are studied and their efficacy for extraction, NMR spectral acquisition, and chromatographic purification of fullerenes is discussed. Ortho-dichlorobenzene was chosen as the best solvent for these applications and examples of its use in the extraction of higher fullerenes (>C84) and in the rapid acquisition of (13)C NMR spectra are given. Finally, single column purification of both C60 and C70 is discussed. Starting with a typical arc-derived mixture of soluble fullerenes, 5.97 g of C60 at >99.9% purity and 1.58 g of C70 at >97% purity were produced in a single column pass.
- Research Organization:
- South Carolina Univ., Columbia, SC (United States). Dept. of Chemistry and Biochemistry
- OSTI ID:
- 147198
- Report Number(s):
- AD-A-296464/1/XAB; CNN: Contract N00014-89-J-3062; TRN: 53240509
- Resource Relation:
- Other Information: PBD: 7 Jun 1995
- Country of Publication:
- United States
- Language:
- English
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