Isolation and Crystallographic Characterization of Gd3N@D2(35)-C88 through Non-Chromatographic Methods
While several nonchromatographic methods are available for the isolation and purification of endohedral fullerenes of the type M3N@Ih-C80, little work has been done that would allow other members of the M3N@C2n family to be isolated with minimal chromatography. Here, we report that Gd3N@D2(35)-C88 can be isolated from the multitude of endohedral and empty cage fullerenes present in carbon soot obtained by electric-arc synthesis using Gd2O3-doped graphite rods. The procedure developed utilizes successive precipitation with the Lewis acids CaCl2 and ZnCl2 followed by treatment with amino-functionalized silica gel. The structure of the product was identified by single-crystal X-ray diffraction.
Steven Stevenson, K D. Arvola, M Fahim, B R. Martin, K B. Ghiassi, M M. Olmstead, and A L. Balch (2015).
Isolation and Crystallographic Characterization of Gd3N@D2(35)-C88 through Non-Chromatographic Methods. Inorganic Chemistry.