𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Approximation of three-center nuclear attraction integrals over slater-type orbitals

✍ Scribed by J. Reinhold; H. Zwanziger; Ch. Meyer


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
385 KB
Volume
25
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


A simple method for the rppro.ximation of three-center nuclear attraction integrals is given. In (x,ll/r,lx$ the point charge is expanded aroung the center 6. For the terms of the expansion in the potential a suitable appro.xbnation is used such that the integral is reduced to overlap-type integrals.


πŸ“œ SIMILAR VOLUMES


Computation of overlap integrals over Sl
✍ I. I. Guseinov; A. Γ–zmen; Ü. Atav; H. YΓΌksel πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 153 KB πŸ‘ 1 views

Analytical expressions through the binomial coefficients and recursive relations are derived for the expansion coefficients of overlap integrals in terms of a product of well-known auxiliary functions A and B . These formulas are especially k k useful for the calculation of overlap integrals for lar

Analytic LΓΆwdin alpha-function method fo
✍ Herbert W. Jones πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 410 KB

Using the Lowdin alpha-function method in which displaced orbitals are expanded in spherical harmonics, two-center, two-electron repulsion integrals of the Coulomb, hybrid, and exchange type are done analytically using Slater-type orbitals. Computer algebra and integer arithmetic are used to obtain

Calculation of the one-electron two-cent
✍ Sidi Mohamed Mekelleche; Abdellatif Baba-Ahmed πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 180 KB πŸ‘ 1 views

A method for the calculation of one-electron two-center integrals is described. Using an ellipsoidal coordinate system, both the overlap, kinetic energy, and nuclear attraction integrals are expressed in terms of the so-called sigma function w introduced by Baba-Ahmed et al. A. Baba-Ahmed and J. Gay

Analytical evaluation of molecular elect
✍ I. I. Guseinov πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 154 KB πŸ‘ 2 views

The analytical expressions are derived for the magnetic multipole moment integrals in terms of electric multipole moment integrals for which the closed formulas through the overlap integrals are obtained. By the use of the derived expressions in terms of overlap integrals, the electric and magnetic