C60F36: there is a third isomer and it has C1 symmetry.

@article{Avent2002C60F36TI,
  title={C60F36: there is a third isomer and it has C1 symmetry.},
  author={Anthony G Avent and Brian W. Clare and P. Hitchcock and David L Kepert and Roger Taylor},
  journal={Chemical communications},
  year={2002},
  volume={20},
  pages={2370-1}
}
From fluorination of [60]fullerene with MnF3/K2NiF6 at 480 degrees C we have isolated and characterized by both 19F NMR spectrum and single crystal X-ray analysis, a C1 isomer of C60F36; it has three planar delocalized aromatic rings, three short C=C bonds (due to compression from the adjacent fluorines), the longest FC-CF bond (1.684 A) yet found in a fluorofullerene, and its stability is predicted by calculations.