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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


Additivity model for calculations of UHF
✍ K. K. Sharma 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 233 KB

## 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.

Comparison of Spin Density Calculation M
✍ Jussi Eloranta; Virpi Vatanen; Antti Grönroos; Mikko Vuolle; Reijo Mäkelä; Hilkk 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 450 KB 👁 2 views

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