Collisional probes and possible structures of La2C80

Chahan Yeretzian, Klavs Hansen, Marcos M. Alvarez, K. S. Min, E. G. Gillan, Károly Holczer, Richard B. Kaner, Robert L. Whetten

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


The soluble molecule La2C80 recently reported by Alvarez et al. exhibits a robustness similar to other fullerenes. It survives intact for ≈ 10-6s following impact against solid surfaces Si(100) at up to 200 eV, yielding an estimate Ef>4 eV for fragmentation processes. The high threshold for electron emission suggests that the electron affinity in La2C-80 is significantly larger than in C60. These facts seem to rule out an external site for either La atom and disfavor a network-site interpretation, and thus favor endohedral (encapsulation) sites. Among the possible cages, the Ih-C80 fullerene appears to be highly favorable for the oxidation state (La3+)2C6-80.

Original languageEnglish (US)
Pages (from-to)337-342
Number of pages6
JournalChemical Physics Letters
Issue number3-4
StatePublished - Aug 14 1992
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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