Abstract

Raman scattering excited with 1064nm laser beam was used to study the temperature properties of the radical anion salt C60 with tetraphenylphosphoniumiodide (Ph4P)2·C60·I. The enhanced intensity, broadening and red-shift of the low-frequency C60 modes were all explained as a result of electron–molecular vibration (e–mv) interactions. The e–mv coupling constants were evaluated for low-frequency Hg and Ag modes of the fullerene monoanion. The determined coupling constants for (Ph4P)2·C60·I are in good agreement with earlier results for the fullerene and its compounds.

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