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Molecular MC SCF calculations by direct minimization

✍ 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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πŸ“œ SIMILAR VOLUMES


Molecular MC–SCF calculations
✍ B. Levy πŸ“‚ Article πŸ“… 1970 πŸ› John Wiley and Sons 🌐 English βš– 723 KB

## Abstract A practical method for finding multi‐configurational 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

Direct minimization in mc scf theory. th
✍ Richard H.A. Eade; Michael A. Robb πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 English βš– 532 KB

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

Theory of lone pairs. IV. Molecular ion
✍ C. Kozmutza; E. Kapuy; M. A. Robb; R. Daudel; I. G. Csizmadia πŸ“‚ Article πŸ“… 1982 πŸ› John Wiley and Sons 🌐 English βš– 504 KB

## Abstract Closed‐shell SCF calculations on the ground states and direct SCF calculations on the ionized doublet states were carried out for a series of ten‐electron hydrides. The correlation of ionization potentials with the degree of protonation and the nuclear charge has been studied for hole s