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Sm@C-74: Computed Relative Isomeric Populations

Publication at Faculty of Science |
2014

Abstract

Density-functional theory (DFT) calculations are reported for Sm@C-74, namely for Sm encapsulation in the IPR (isolated pentagon rule) C-74 cage and in two C-74 cages with a pentagon-pentagon junction. Their relative thermodynamic production yields are evaluated using the DFT calculated terms and it is shown that the IPR-based Sm@C-74 endohedral prevails at relevant temperatures in agreement with observation, however, isolation of a minor isomer could be possible.