title: An efficient method to separate Sc3N@C80 Ih and D5h isomers and Sc3N@C78 by selective oxidation with acetylferrocenium [Fe(COCH3C5H4)Cp]+.
abstract: 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.
authors.affiliation: Department of Chemistry, University of Texas at El Paso, 500W University Ave, El Paso, TX 79968, USA.
authors.forename: Maira R
authors.initials: MR
authors.lastname: Cerón
authors.forename: Fang-Fang
authors.initials: FF
authors.lastname: Li
authors.forename: Luis
authors.initials: L
authors.lastname: Echegoyen