An Efficient Method to Separate Sc3N@C80 Ih and D5h Isomers and Sc3N@C78 by Selective Oxidation with Acetylferrocenium [Fe(COCH3C5H4)Cp]+

被引:22
作者
Ceron, Maira R. [1 ]
Li, Fang-Fang [1 ]
Echegoyen, Luis [1 ]
机构
[1] Univ Texas El Paso, Dept Chem, El Paso, TX 79968 USA
基金
美国国家科学基金会;
关键词
endohedral metallofullerenes; geometric isomers; oxidation; reduction; scandium; ENDOHEDRAL METALLOFULLERENES; HIGH-YIELD; D-5H; FULLERENES; PURIFICATION; CATION; STATE; CAGE;
D O I
10.1002/chem.201204219
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Based on the different oxidation potentials of endohedral fullerenes Sc3N@C80 Ih and D5h and Sc3N@C78, an efficient and useful method that avoids HPLC has been developed for their separation. Selective chemical oxidation of the Sc3N@D5h-C80 isomer and Sc3N@C78 by using an acetylferrocenium salt [Fe(COCH3C5H4)Cp]+ followed by column chromatographic separation and reduction with CH3SNa resulted in the isolation of pure Sc3N@Ih-C80, Sc3N@C78, and a mixture of Sc3N@D5h-C80 and Sc3N@C68.
引用
收藏
页码:7410 / 7415
页数:6
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