Eu@C72: Computed Comparable Populations of Two Non-IPR Isomers
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Material Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic
Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721-0041, USA
Author to whom correspondence should be addressed.
Received: 18 May 2017 / Revised: 14 June 2017 / Accepted: 21 June 2017 / Published: 24 June 2017
Relative concentrations of six isomeric Eu@C
—one based on the IPR C
cage (i.e., obeying the isolated-pentagon rule, IPR), two cages with a pentagon–pentagon junction (symmetries
), 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.
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MDPI and ACS Style
Slanina, Z.; Uhlík, F.; Nagase, S.; Akasaka, T.; Adamowicz, L.; Lu, X. Eu@C72: Computed Comparable Populations of Two Non-IPR Isomers. Molecules 2017, 22, 1053.
Slanina Z, Uhlík F, Nagase S, Akasaka T, Adamowicz L, Lu X. Eu@C72: Computed Comparable Populations of Two Non-IPR Isomers. Molecules. 2017; 22(7):1053.
Slanina, Zdeněk; Uhlík, Filip; Nagase, Shigeru; Akasaka, Takeshi; Adamowicz, Ludwik; Lu, Xing. 2017. "Eu@C72: Computed Comparable Populations of Two Non-IPR Isomers." Molecules 22, no. 7: 1053.
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