Computed structures of two known Yb@C74 isomers |
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Authors: | Slanina Zdenĕk Uhlík Filip Nagase Shigeru |
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Institution: | Department of Theoretical Molecular Science, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Aichi, Japan. zdenek@ims.ac.jp |
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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. |
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