Methods for improving spin densities obtained from unrestricted Hartree—Fock wavefunctions
✍ Scribed by A.T. Amos; D.R. Beck; I.L. Cooper
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 310 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Various methods are suggested for improving the spin densities obtained from unrestricted Hartree-Fock wavefunctions. One is purely empirical and is easy to apply; the others are non-empirical and, while rather more difficult to apply, nevertheless require relatively little computation.
📜 SIMILAR VOLUMES
An additivity model has been found to be adequate for predicting unrestricted Hartree-Fock spin densities and chzuge densities in vyious fluorinated naphthalkne radical utions. '. ' '..
The Kramers' restricted Hartree᎐Fock KRHF and second-order Ž . Møller᎐Plesset perturbation KRMP2 methods using relativistic effective core potentials Ž . RECP with spin᎐orbit operators and two-component spinors are extended to the unrestricted forms, KUHF and KUMP2. As in the conventional unrestrict