Synthesis, Isolation and Structure of Trifluoromethylated Fullerene D3-C78, C78(1)(CF3)10−18

High-temperature trifluoromethylation of fullerene C78 followed by HPLC separation of C78(CF3)n derivatives resulted in the isolation and X-ray structural characterization of 15 compounds, that is, two C78(1)(CF3)10, three C78(1)(CF3)12, four C78(1)(CF3)14, and five C78(1)(CF3)16 isomers as well as one isomer of C78(1)(CF3)18. The addition patterns of the C78(1)(CF3)n molecules are discussed in terms of trifluoromethylation pathways and relative formation energies.