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Abstract

¹³C NMR Investigations of Fullerene Black

Solid-state ¹³C NMR measurements on differently treated fullerene black samples are reported. The results show that no significant amounts of C₆₀ molecules are entrapped in fullerene black in a way that they are not accessible for conventionally used toluene extraction. The broad distribution of chemical shifts in the ¹³C MAS NMR spectra confirms the large abundance of bent carbon structures in this amorphous carbon material.