hiinimum kinetic energy deorthogonalization leads to valence atomc orbit& whose kinetic energy is a simple function of tile orbital \_GI~~US, R;; l/Ri' (ill/fli), and the angular momentum quantum number, 1. We recently proposed [l] a minimum kinetic energy modification of the Raffenetti-Ruedenberg
Non-orthogonal atomic orbitals
โ Scribed by Louis Chopin Cusachs
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 327 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The construction of non-orthogonal localized molecular orbitals (Wannier functions of extended systems) with maximal degree of localization according to the Magnasco-Perico localization criterion derived from Mulliken's population analysis is discussed and several forms of the equations giving these
A theorem is proven showing that one can always find a special non-orthogonal set of localized orbitals each of which contains only one of a starting set of approximate occupied orbitals (e.g. bonding orbitals of some subunits). A method of a posteriori determination and a specific perturbation theo
## X general version of the multi-configuration Hartree--Fock method is elaborated. An N-electron wavefunction is approximated as a linear combination of configurations which are constructed from space orbit& which are divided into disjoint subsets, with elements of the same subset being kept orth
The method of calculating interaction matrix elements between multi-configurational wave functions, given by Fano (1965) for orthogonal orbitals, is extended to allow the use of non-orthogonal orbitals. We allow up to two subshells in each configuration function which contain spectator (non-interact
By introducing the definition of the reciprocal basis vector, the unit operator can be established, allowing vectors and operators to be represented in matrix form, and the solution of equations can be reduced to a series of basis vector transformations. By using this method and discarding the const