DIRAC–FOCK ATOMIC ELECTRONIC STRUCTURE CALCULATIONS USING DIFFERENT NUCLEAR CHARGE DISTRIBUTIONS
✍ Scribed by L. Visscher; K.G. Dyall
- Book ID
- 102965530
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 682 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0092-640X
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✦ Synopsis
Numerical Hartree-Fock calculations based on the Dirac-Coulomb Hamiltonian for the first 109 elements of the periodic table are presented. The results give the total electronic energy, as a function of the nuclear model that is used, for four different models of the nuclear charge distribution. The main purpose of the calculations is to provide a set of benchmark results for basis set calculations that use a finite size nuclear model.
📜 SIMILAR VOLUMES
It is demonstrated that the use of a Gaussian charge distribution to represent the nucleus is advantageous in relativistic quantum chemical basis set expansion calculations. It removes the singularity at the origin of the Dirac wavefunction, leading to a more rapid convergence of the ground-state en