Various geometry optimization techniques are systematically Ε½ . investigated. The rational function RF and direct inversion in the iterative Ε½ . subspace DIIS methods are compared and optimized for the purpose of geometry optimization. Various step restriction and line search procedures are tested.
THE AB INITIO SCF METHOD FOR LARGE MOLECULES
β Scribed by A. Veillard
- Book ID
- 118719377
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 182 KB
- Volume
- 367
- Category
- Article
- ISSN
- 0890-6564
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Results from pseudopotential calculations on S-hydroxyindole, tryptamine, 5-hydroxytryptamine, 6-hydroxytryptamine and the imidazolium cation are compared to full ab-initio calculations. The localization of all molecular orbitals is found to be identical with the two methods. Orbital energies from t
The effective fragment potential (ErP) approximation within the ab initio hi0 method is proposed. Only the active electrons of a molecule are explicitly taken into account. the rest of the molecule being replaced by an effective potential. Corrsldcring NH3 LIS 1 two-electron system. the potcnrial pa