Electronic structure of C70 and C70(S8)6 studied using electron energy-loss spectroscopy

The electronic structure of C70 and C70(S8)6 has been studied using electron energy-loss spectroscopy. Cls core level excitation measurements yield the C2p-derived unoccupied density of states. The low energy function gives information on interband transitions and plasmon excitations. All these spectra, and therefore the electronic structure, are nearly identical in the two compounds, both being solids containing van-der-Waals bound C70 molecules. Any possible interaction with the S8 rings does not contribute significantly to the observed electronic structure.