Electron Attachment to Higher Fullerenes and to Sc3N@C80
- 23 March 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry A
- Vol. 110 (27), 8451-8456
- https://doi.org/10.1021/jp060324v
Abstract
We report on attachment of free electrons to fullerenes Cn (n = 60, 70, 76, 78, 80, 82, 84, 86) and to Sc3[email protected]80. 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 Sc3[email protected]80 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 Sc3[email protected]80 is reflected in its reduced ion yield at higher attachment energies.Keywords
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