MRCI and CASP'I2 calculations from a (4, 4) MCSCF active space predict both vinylnitrene and vinylphosphinidene to have 3~, ground states. For vinylnitrene, the lowest open-shell singlet (1K') and closed-shell singlet 0A') states lie 15 and 40 kcal/mol higher in energy, respectively. The correspondi
Calculation of hyperfine coupling constants using second order double perturbation theory and the configuration interaction method
✍ Scribed by B. Burton; T.A. Claxton; Y. Ellinger
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 354 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0010-4655
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✦ Synopsis
First and second order double perturbation theory using the Epstein-Nesbet partition was used to calculate hyperfine coupling constants for H 2NO. The results are compared with configuration interaction calculations with all single, double and some triple excitations.
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The g tensor components of the 4,5-dihydro-1,3,2-dithiazolyl (H2DTA•) radical, which is a basic building block for molecular magnets and spintronic devices, is calculated by the coupled-perturbed Kohn-Sham (CPKS) hybrid density functional (HDF) and multireference configuration interaction-sum over s