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• W3103290777 abstract "The need for accurate calculations on atoms and diatomic molecules is motivated by the opportunities and challenges of such studies. The most commonly used approach for all-electron electronic structure calculations in general—the linear combination of atomic orbitals (LCAO) method—is discussed in combination with Gaussian, Slater a.k.a. exponential, and numerical radial functions. Even though LCAO calculations have major benefits, their shortcomings motivate the need for fully numerical approaches based on, for example, finite differences, finite elements, or the discrete variable representation, which are also briefly introduced. Applications of fully numerical approaches for general molecules are briefly reviewed, and their challenges are discussed. It is pointed out that the high level of symmetry present in atoms and diatomic molecules can be exploited to fashion more efficient fully numerical approaches for these special cases, after which it is possible to routinely perform all-electron Hartree-Fock and density functional calculations directly at the basis set limit on such systems. Applications of fully numerical approaches to calculations on atoms as well as diatomic molecules are reviewed. Finally, a summary and outlook is given." @default.
• W3103290777 created "2020-11-23" @default.
• W3103290777 creator A5078240465 @default.
• W3103290777 date "2019-05-21" @default.
• W3103290777 modified "2023-10-15" @default.
• W3103290777 title "A review on non‐relativistic, fully numerical electronic structure calculations on atoms and diatomic molecules" @default.
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