Lost and found: In situ exohedral trifluoromethylation of endohedral fullerenes using an arc-discharge method (see picture) gives access to a wide variety of missing unconventional metallofullerenes. Such otherwise insoluble and unstable metallofullerenes become soluble and stable in organic solvents after an exterior functionalization.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2013) studied this question.