## Abstract A practical method for finding multiβconfigurational SCF wave functions is proposed. The basic equation is equivalent to the Brillouin theorem; comparison with the usual SCF equations obtained through effective hamiltonians gives an interpretation of the offdiagonal Lagrange multipliers
Molecular MC SCF calculations by direct minimization
β Scribed by Piercarlo Fantucci; Stefano Polezzo
- Publisher
- Springer
- Year
- 1977
- Tongue
- English
- Weight
- 198 KB
- Volume
- 44
- Category
- Article
- ISSN
- 1432-2234
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π SIMILAR VOLUMES
The efficiency of the use of a diagonal approximation to the hessian matrix coupled with a quasi-Newton updating method in MC SCF calculations is examined. In general, satisfactory convergence is obtained provided the CI expansion corresponds to a full valence shell CL
## Abstract Closedβshell SCF calculations on the ground states and direct SCF calculations on the ionized doublet states were carried out for a series of tenβelectron hydrides. The correlation of ionization potentials with the degree of protonation and the nuclear charge has been studied for hole s