We have developed a program for analytically calculating ## Ε½ . magnetizabilities for close-shell systems at the self-consistent-field SCF level using Ε½ . gauge-invariant atomic orbitals GIAOs . The GIAOs integral formulas are derived from our extended ObaraαSaika recurrence formulas. The GIAOαSC
An algorithm for the use of symmetry in molecular self-consistent-field calculations
β Scribed by N.W. Winter; W.C. Ermler; R.M. Pitzer
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 330 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The application of a simple relationship between atomic orbital integrals and symmetry orbital integrals is described in connection with traditional uses of symmetry. The simple modifications for impIementation in the POLYATOM molecular self-consistent-field programs arc given and discussed. Examples of the effectiveness of these modifications are included.
π SIMILAR VOLUMES
The use of symmetry-adapted crystalline orbitals SACOs in self- ## Ε½ . consistent-field SCF schemes for infinite periodic systems is discussed and documented with reference to many examples. The symmetry information generated during the SACOs construction is used to illustrate some particular fea
## Abstract Localized molecular orbitals (LMOs) derived from exchange maximization with respect to all atomβcentered basis functions in the basis set are shown to generate a good starting electronic field for selfβconsistent field calculations on extended systems such as metal clusters, for which w
Hz-H, we have calculated the contribution to the interactton potential from polarization and charge transfer using the SCF supermolecule approach with two versions of the counterpoise correction. We used the original Boys and Bernardi prescription and we used only virtual SCF orbitals from the partn
The bi-variational self-consistent field equations are solved to isolate the resonant orbitals for the CO and C2H 4 molecules. These orbitals offer some correlation between the shape resonances in e-molecule scattering and the LUMO of the target molecule. The resonant orbital on the real line is sho
The frequency-independent Breit interaction is treated self-consistently in Dirac-Fock Gaussian basis set calculations on the Be atom and Ne6+, Arr4+ and Sn46+ Ions. The results of the calculations on Be are in excellent agreement with both Desclaux's benchmark numerical pcrturbative calculations an