The present study examines the feasibility of combining the correlation-consistent basis sets developed by Dunning and coworkers with the hybrid Hartree᎐Fockrdensity functional method B3LYP. Furthermore, Ž . extrapolation to the complete basis set CBS limit minimizes errors due to the presence of an
Hartree–Fock wave functions with a modified GTO basis for atoms
✍ Scribed by E. Buendía; F. J. Gálvez; A. Sarsa
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 139 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0020-7608
No coin nor oath required. For personal study only.
✦ Synopsis
We have solved the atomic Hartree᎐Fock equations by using the algebraic approach, expanding the single-particle radial wave function in terms of a Ž . modified Gaussian type orbitals GTOs basis. Several atomic properties such as Kato's cusp condition for the electron density or the correct asymptotic behavior of the electron momentum density distribution are accurately verified. Additionally the energy of the atomic ground state can be obtained by using a smaller number of basis functions than in standard GTO expansions. This study has been performed for several atoms of the first three rows.
📜 SIMILAR VOLUMES
The generator coordinate Hartree᎐Fock method is applied to Ž . generate a universal Gaussian basis set for the heavy atoms from Ce Z s 58 Ž . through Lr Z s 103 . The Hartree᎐Fock energies obtained with our universal Gaussian basis set are compared with the new numerical Hartree᎐Fock results of Koga
We have applied a discretized version of the generator coordinate Hartree᎐Fock method to generate adapted Gaussian basis sets for atoms Cs Ž . Ž . Zs55 to Lr Z s 103 . Our Hartree᎐Fock total energy results, for all atoms studied, are better than the corresponding Hartree᎐Fock energy results attained
The generator coordinate Hartree᎐Fock GCHF method is employed as a criterion for the selection of a 18 s12 p Gaussian basis for the atoms Na᎐Ar. The role of the weight functions in the assessment of the numerical integration range of the GCHF Ž . equations is shown. The extended basis is then contra
Distributed multipole analysis DMA on the basis of periodic Ž . Hartree᎐Fock PHF calculations, using the CRYSTAL code, is applied to five different all-siliceous zeolite models: chabazite, gmelinite, merlinoite, montesommaite, and RHO. Mulliken charges of the framework atoms were calculated with a p