Abstract
The 1/Z expansion will first be used to discuss the scaling properties of the ground-state energy of heavy (non-relativistic) neutral atoms with atomic number Z. The question will be addressed as to what order in Z electron correlation first enters the expansion. The density functional theory (DFT) invoked above will be utilized then to treat, but now inevitably more approximately, the correlation energy in a variety of molecules. Finally, recent studies at Hartree-Fock level on almost spherical B and C cages will be reviewed. For buckminsterfullerene, the role of electron correlation will then be assessed using the Hubbard Hamiltonian, as in the study of Flocké et al.
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March, N.H. (2003). Electronic Structure of Atoms, Molecules, and Clusters: Hartree-Fock and Beyond. In: Maruani, J., Lefebvre, R., Brändas, E.J. (eds) Advanced Topics in Theoretical Chemical Physics. Progress in Theoretical Chemistry and Physics, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0635-3_4
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DOI: https://doi.org/10.1007/978-94-017-0635-3_4
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