Quantitative assessment of the vibronic coupling in C60- via doping effects in Raman scattering experiments -: art. no. 245414

Raman scattering and infrared data from experiments performed on doped fullerenes is collated from published work. The resulting information is interpreted in order to extract a measure of the electron-phonon coupling in fullerene systems. A simple model is used to analyze the shifts in the phonon frequencies caused by doping, in which contributions due to charge-transfer effects and vibronic coupling are separated. It is found that the coupling coefficients inferred for the h(g) modes of the buckminsterfullerene monoanion C-60(-) are in good agreement with those deduced from experimental photoemission spectroscopy data.