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Comparison of various semiempirical MO LCAO methods

✍ Scribed by A. P. Zeif


Book ID
112481991
Publisher
Springer
Year
1972
Tongue
English
Weight
462 KB
Volume
5
Category
Article
ISSN
0040-5760

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πŸ“œ SIMILAR VOLUMES


The Semiempirical LCAO-MO Treatment of [
✍ J. MΓ‘lek; K. PolΓ‘k πŸ“‚ Article πŸ“… 1972 πŸ› John Wiley and Sons 🌐 English βš– 467 KB

## Abstract A parameter‐free SCCC‐MO calculation including interatomic effects was performed for the ground and the first excited state of [NiF~6~]^4βˆ’^ cluster of crystalline KNiF~3~. The influence of alternative choices of metal basis functions and particular models of population analysis on the v

Comparison of semiempirical MO methods f
✍ Derek Higgins; Colin Thomson; Walter Thiel πŸ“‚ Article πŸ“… 1988 πŸ› John Wiley and Sons 🌐 English βš– 391 KB

The use of AM1, MNDO, and MNDOC semiempirical MO methods for calculation of heats of formation and ionization potentials of a series of 38 radicals are described. AM1 and MNDO calculations are reported using both half-electron (HE) and Unrestricted Hartree Fock (UHF) wavefunctions. Results show the

Comparison of semiempirical MO methods a
✍ P. Scano; C. Thomson πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 201 KB

The heats of formation for 19 molecules have been calculated with PM3 and AM1 semiempirical methods. The values obtained have been compared with experimental heats of formation. With PM3 and AM1 the average differences between calculated and experimental heats of formation are 8.45 and 12.34 kcal mo

An approximation of the two-center coulo
✍ N. Tyutyulkov; A. Gochev; F. Fratev πŸ“‚ Article πŸ“… 1969 πŸ› Elsevier Science 🌐 English βš– 151 KB

It is shown that the singlet and triplet transition energies of hydrocarbons may be calculated by means of the generalised Mataga-Nishimoto approximation for the two-center Coulomb integrals.