Extractions of Ca@C_<60> and Sr@C_<60> with Aniline
Endohedral metallofullerenes, Ca@C<SUB>60</SUB> and Sr@C<SUB>60</SUB>, prepared by the arc-heating of the graphite rods containing CaO and SrO, respectively, have been extracted with aniline under the air atmosphere. The laser desorption time-of-flight (LD-TOF) mass spectra for the extracted solutions exhibit intense peaks due to M@C<SUB>60</SUB><SUP>+</SUP> (M: Ca and Sr) and C<SUB>60</SUB><SUP>+</SUP> with weak peaks due to the other hallow fullerenes and metallofullerenes.
- Chemistry letters
Chemistry letters 1996(6), 453-454, 1996-06
The Chemical Society of Japan