## Abstract We present a method for the characterization of the distance between two spaces: one generated by a Gaussian basis set, and another by a Slater basis set. The method is an extension of one previously developed for atoms that has been modified to cover molecular problems. The current ver
Simple extended STO basis sets. Helium
✍ Scribed by Alain Pellégatti
- Book ID
- 104579113
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 163 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0020-7608
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The two‐parameter function, φ = (C~1~ + C~2~r^n^^−1^) exp (−ζ__r__), (n = 2–5), has been used as a basis function to determine the independent particle model energy of two‐electron atomic systems in their ground state. The best energy is found for n = 3 (He—B^3+^) and for n = 4 (H^−^). Our energy values are significantly close to Hartree‐Fock results.
📜 SIMILAR VOLUMES
## Abstract Advantages and difficulties of numerical integration in relation to a transcorrelated solution of the molecular Schrödinger equation are discussed. Because singularities in the two‐electron integrals can be completely removed in a transcorrelated calculation, the major difficulty remain
Slater basis sets were developed for the transition metals yttrium through cadmium. Gaussian expansions of these basis sets are extremely useful for ab initio methods which employ six Cartesian Gaussians for the description of the d orbitals. The s-type function generated from the symmetric combinat