## Abstract The results obtained using different semiβempirical approaches, namely EHMO, IEHMO, CNDO/2 and INDO, in the calculation of spinβspin coupling constants within the framework of the oneβelectron MO approximation are systematically compared in the case of several classes of organic molecul
NDDO MO calculations: isotropic hyperfine coupling constants and nuclear spin-spin coupling constants
β Scribed by Prem K. Mehrotra; Jayaraman Chandrasekhar; Periakaruppan T. Manoharan; Sankaran Subramanian
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 244 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The nonempirical NDDO MO method in its unrestricted form has been used to evaluate isotropic hyperfme coupling constants and nuclear spin-spin coupling constants_ Satlskctory agreement \ith INDO and experimental results is ob-
π SIMILAR VOLUMES
## Abstract MO calculations based on the finite perturbation theory in the INDO approximation have been carried out on selenophene, eighteen of its monosubstituted derivatives and benzo (b)selenophene. The calculated nuclear spin coupling constants satisfactorily reproduce signs, magnitudes, intern
Isokopic nuclear spti spin coupling constants have been e-&dated for ti possible couplings in HIO, NH3 and CH4 by two different double perturbation techniques. All calculations were performed employing bases of decors constructed with SCF canonical and, for H20, localized orbitals, produced by exten