Isolation and Crystallographic Characterization of Gd3N@D2(35)-C88 through Non-Chromatographic Methods

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• 作者：Steven Stevenson ; Kristine D. Arvola ; Muska Fahim ; Benjamin R. Martin ; Kamran B. Ghiassi ; Marilyn M. Olmstead ; Alan L. Balch
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：January 4, 2016
• 年：2016
• 卷：55
• 期：1
• 页码：62-67
• 全文大小：426K
• ISSN：1520-510X

文摘

While several nonchromatographic methods are available for the isolation and purification of endohedral fullerenes of the type M₃N@I_h-C₈₀, little work has been done that would allow other members of the M₃N@C_2n 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.