The chemical bonding and the electronic structures of C 60 F x and C 70 F x were investigated by near edge X-ray absorption fine structure (NEXAFS) spectroscopy and UV photoemission spectroscopy (UPS), which are useful methods for examining the unoccupied and the occupied states, respectively. With these results and XPS measurements, we derived the electronic energy diagram of C 60 F x and discussed the change of the electronic structure from that of C 60 by fluorination. The energies of the LUMO and the Fermi level of solid C 60 F 48 were estimated to be -5.0 and -5.4 eV below the vacuum level, indicating that highly doped C 60 F x is a strong electron acceptor. The electronic absorption spectra of C 60 F x solutions deep into the vacuumultraviolet region were also measured, and the isomerism of C 60 F x was discussed by comparing the observed results with theoretical simulations.

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This paper deals with theoretical investigation of radiation influence on Werens. Our approach is based on the "crossword system". Irradiation effects by means of four llasic fxtors: chtic displacement of atoms, ionization, shock waves, heat emission. AU radiation induced macroeffects cm bc dcvided into following succe&e clexne~~tary processes: defect production, digusion, quasichemical reactions. Thexforc our research is construction of basic models for each fundamental factor response to any t y p e of elementary process, taking into account pccUiiarities of geometric and clwtronic zllercns structure. For example, on this base we constructed a modcldor elastic and Auger defects production, electron stimulated diffusion of single atom C and dumbs-beJl c;,quaSichemical reaction of displaced atam C recombination with the yacatlcy V.