Unfilled orbitals of C60 and C70 from carbon K-shell X-ray absorption fine 
structure

Terminello, L.J.; Shuh, D.K.; Himpsel, F.J.; Lapiano-Smith, D.A.; Stöhr, J.; Bethune, D.S.; Meijer, Gerard

doi:/10.1016/0009-2614(91)90113-N

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Unfilled orbitals of C₆₀ and C₇₀ from carbon K-shell X-ray absorption fine structure

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Terminello, L., Shuh, D., Himpsel, F., Lapiano-Smith, D., Stöhr, J., Bethune, D., et al. (1991). Unfilled orbitals of C₆₀ and C₇₀ from carbon K-shell X-ray absorption fine structure. Chemical Physics Letters, 182(5), 491-496. doi:/10.1016/0009-2614(91)90113-N.

Cite as: https://hdl.handle.net/21.11116/0000-000B-65F8-C

Abstract

The K-shell near-edge X-ray absorption fine structure spectra of solid C₆₀ and C₇₀ have been recorded with high spectral resolution. The spectra exhibit sharp resonances associated with transitions to unfilled π^* molecular orbitals and, at higher energy, broader resonances associated with σ^*-like orbitals. The observed energy splitting of the π^* resonances can be accounted for by published extended Hückel calculations. Our data clearly reveal that the fullerence films resemble molecular solids with considerably stronger intra-molecular than inter-molecular interactions.