Eu@C72: Computed comparable populations of two non-IPR isomers

Zdeněk Slanina, Filip Uhlík, Shigeru Nagase, Takeshi Akasaka, Ludwik Adamowicz, Xing Lu

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Relative concentrations of six isomeric Eu@C72—one based on the IPR C72 cage (i.e., obeying the isolated-pentagon rule, IPR), two cages with a pentagon–pentagon junction (symmetries C2 and C2v), a cage with one heptagon, a cage with two heptagons, and a cage with two pentagon–pentagon fusions—are DFT computed using the Gibbs energy in a broad temperature interval. It is shown that the two non-IPR isomers with one pentagon–pentagon junction prevail at any relevant temperature and exhibit comparable populations. The IPR-satisfying structure is disfavored by both energy and entropy.

Original languageEnglish (US)
Article number1053
Issue number7
StatePublished - Jul 2017


  • Metallofullerenes
  • Non-IPR fullerenes
  • Relative populations of isomers

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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