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An Efficient Method to Separate Sc 3 N@C 80 I h and D 5 h Isomers and Sc 3 N@C 78 by Selective Oxidation with Acetylferrocenium [Fe(COCH 3 C 5 H 4 )Cp] +
Author(s) -
Cerón Maira R.,
Li FangFang,
Echegoyen Luis
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201204219
Subject(s) - chemistry , analytical chemistry (journal) , fullerene , high performance liquid chromatography , nuclear chemistry , chromatography , organic chemistry
Based on the different oxidation potentials of endohedral fullerenes Sc 3 N@C 80 I h and D 5 h and Sc 3 N@C 78 , an efficient and useful method that avoids HPLC has been developed for their separation. Selective chemical oxidation of the Sc 3 N@ D 5 h ‐C 80 isomer and Sc 3 N@C 78 by using an acetylferrocenium salt [Fe(COCH 3 C 5 H 4 )Cp] + followed by column chromatographic separation and reduction with CH 3 SNa resulted in the isolation of pure Sc 3 N@ I h ‐C 80 , Sc 3 N@C 78 , and a mixture of Sc 3 N@ D 5 h ‐C 80 and Sc 3 N@C 68 .