The Raman excitation profiles for C60 films grown on silicon reveal the existence of optical transitions near 2.4 eV, well below the lowest dipole-allowed absorption line predicted for isolated icosahedral molecules. These transitions are not observed in C60 dissolved in CS2. We propose an explanation in terms of a breakdown of the icosahedral inversion symmetry in C60 crystals.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry