## Abstract The additivity model as suggested by Moss et al. has been used for predicting spin densities in methyl‐substituted radical anions. Linderberg's relation has been employed for evaluating the core‐resonance integrals (β~__rs__~) and a heteroatom model for the methyl group has been used.
Additivity model for calculations of UHF spin densities in some aza-aromatic radical anions
✍ Scribed by K. K. Sharma
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 204 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
Abstract
The additivity model suggested by Moss et al. has been applied for predicting spin densities in aza‐aromatic radical anions. The core‐resonance integrals (β~rs~) have been evaluated using Linderberg's relation. The spin‐density values calculated using the additivity model, have been found to be in good agreement with unrestricted Hartree–Fock (UHF) spin‐density values.
📜 SIMILAR VOLUMES
An additivity model has been found to be adequate for predicting unrestricted Hartree-Fock spin densities and chzuge densities in vyious fluorinated naphthalkne radical utions. '. ' '..
EPR and ENDOR spectra were recorded for 2-methyl-9,lO-anthraquinone (tmethylAQ), 2-ethylAQ, 2-tert-butylAQ and 2,fdimethylAQ anion radicals in the solution phase. The EPR spectra were simulated with the help of ENDOR data. The experimental isotropic hyperfine coupling constants (IHFCs) were compared