Relationship between reduction potentials and electron affinities of fullerenes and their derivatives

A linear relationship was found between the first reduction potentials (E°red) and electron affinities (EA) for fullerenes C60 and C70, their hydro- and fluoro-derivatives, and aromatic hydrocarbons: E°red = –3.04 + 0.81·EA. This equation was used to estimate the unknown values of EA = 2.45 eV for C60H2, 2.47 eV for C70H2, –0.15 eV for C70H36—38, –0.41 eV for C70H44—46, and E°red = –1.74—–1.91 V (vs. Fc0/+) for C60H18.