Analytic two-center exchange integrals
β Scribed by E.R. Chan
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 214 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
A highly accurate cxnct annlyrical expression for two-center clcctron-repulsion intcgrols of !hc exchx~gc type using normalized Shtcr orbitals has been developed. Numerical results are prcscnted.
π SIMILAR VOLUMES
In this paper, a necessary condition to have local analytic integrability in an analytic nilpotent center is given. Using the normal form theory it is possible to verify if this necessary condition is satisfied. The method is applied to several examples.
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