## Abstract This essay provides a perspective on several issues in valence bond theory: the physical significance of semilocal bonding orbitals, the capability of valence bond concepts to explain systems with multireferences character, the use of valence bond theory to provide analytical representa
Diagrammatic valence-bond theory for finite model Hamiltonians
โ Scribed by S. Ramasesha; Z. G. Soos
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 963 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0020-7608
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A diagrammatic valence bond method based on Rumer-Pauling rules for configuration interaction calculations is described. The advantages of this method are that it is simple and flexible and is expected to be computationally efficient as the basis functions can be coded as increasing integers. Evalua
## Abstract Previous papers have developed magnetic effective valence bond (EVB) Hamiltonians for the neutral states of ฯ systems; following the same philosophy and using either the quasidegenerate perturbation theory or wave operator formalism, other EVB^+^ Hamiltonians may be derived for the lowe