Electron Attachment to Higher Fullerenes and to Sc3N@C80
We report on attachment of free electrons to fullerenes Cn (n = 60, 70, 76, 78, 80, 82, 84, 86) and to Sc3N@C80. The attachment cross sections exhibit a strong resonance at 0 eV for all species. The overall shape of the anion yield versus electron energy is quite similar for the higher fullerenes, with a minimum around 1 eV and a maximum which gradually shifts from 6 eV for C60 to ≈4 eV for large n. The endohedral Sc3N@C80 exhibits a particularly shallow minimum and a maximum below 4 eV. We model autoionization of the anions with due consideration of the internal energy distributions. The relatively low electron affinity of Sc3N@C80 is reflected in its reduced ion yield at higher attachment energies.
The Journal of Physical Chemistry A
Digital Object Identifier (DOI)
S. Ptasinska, O. Echt, S. Denifl, M. Stano, P. Sulzer, F. Zappa, A. Stamatovic, P. Scheier, T. D. Märk, Electron Attachment to Higher Fullerenes and to Sc3N@C80, J. Phys. Chem. A110 (2006) 8451 – 8456, DOI: 10.1021/jp060324v