title: Computed structures of two known Yb@C74 isomers.
abstract: Six isomers of Yb@C74 are considered, namely one cage with isolated pentagons, three isomers with a pentagon-pentagon junction, two structures with one pentagon-pentagon pair, and one heptagon. The computations based on the Gibbs energy point out the endohedral derived from the only C74 cage with the isolated pentagons and from a cage with one pentagon-pentagon junction as the major and minor observed isomer, respectively. Temperatures giving the best agreement with the experimental production ratio are evaluated.
authors.affiliation: Department of Theoretical Molecular Science, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Aichi, Japan. zdenek@ims.ac.jp
authors.forename: Zdenĕk
authors.initials: Z
authors.lastname: Slanina
authors.forename: Filip
authors.initials: F
authors.lastname: Uhlík
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase