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Density functional theory study of the multimode Jahn-Teller problem in the fullerene anion

  • Ramanantoanina, Harry Department of Chemistry, University of Fribourg, Switzerland
  • Gruden-Pavlović, Maja Department of Chemistry, University of Fribourg, Switzerland - Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Belgrade, Serbia
  • Zlatar, Matija Center for Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Serbia
  • Daul, Claude Department of Chemistry, University of Fribourg, Switzerland
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    28.03.2012
Published in:
  • International Journal of Quantum Chemistry. - 2013, vol. 113, no. 6, p. 802-807
multideterminantal DFT
Jahn Teller effect
fullerene anion
multimode problem
intrinsic distortion path
English The fullerene anion, C₆₀⁻, within the Ih point group, is a spherical molecule subject to the T ⊗ h Jahn–Teller (JT) distortion. The descent in symmetry goes to the three epikernel subgroups, namely D5d, D3d, and D2h. The last one completely removes the electronic degeneracy, whereas D5d and D3d structures are subject to further JT distortion, leading to C2h minimum energy structure. The multideterminantal density functional theory approach was applied to calculate the JT parameters for all seven different structures of lower symmetry. The multimode problem in this system was addressed using the intrinsic distortion path method, in which the JT distortion is expressed as a linear combination of all totally symmetric normal modes in the particular low symmetry minimum energy conformation. Results obtained by both methods are consistent and give direct insight into the coupling of electronic distribution and nuclear movements in C₆₀⁻
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Chemistry
License
License undefined
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https://folia.unifr.ch/unifr/documents/302397
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