Molecular integrals in terms of ellipsoidal gaussian-type orbitals
โ Scribed by D.B. Cook; P.Th. van Duijnen
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 512 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We express the hydrogen-type orbitals as integral transforms of Gaussian functions. The topographic features of the analytical expressions for the weight functions provide ways for the design of basis sets.
Electronic momentum distributions and Compton profGes have been caieutated for a number of small pofyatomic molecuies in the STONG (N=3,4,5,6) approsimation. The gaussian expansions converge rapidly and give acceptable approximations to the corresponding ST0 values for most momentum space properties
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