The spin~xtcnd~ Hertree-rock method in INDO approximation IS preqcntcd. ~ ¶c~techkin's EHF equations are soIvcd iteratively by the method of steepest descent. Efff spin and charge densities, ~uiiibrlum errergres and interatomic distances for some small radicals are compared with the results of the o
Spin-Extended Hartree–Fock calculation for hydrocarbon π-radicals
✍ Scribed by Viliam Klimo; Jozef TiňO
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- English
- Weight
- 361 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
Abstract
An iterative method of solving the Mestechkin spin‐extended Hartree–Fock equations is proposed. On this basis projected and spin‐extended values of energies and spin densities for some hydrocarbon π‐radicals are calculated. Relations among UHF, ASA, AA, projected, and spin‐extended energies are discussed.
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Proton hyperfine coupling constants for some planar and non-planar xanthyl radicals are calculated by the unrestricted Hnrtree-Fock method and compared with the e.'cper-imental data. Recentlv ESR data has become available rll for-a se&s of xanthyl -radicals (see fig. 1). 'L this paper we make a sys
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