The role of alkyl substitution on the electronic structure of cyclohexane radical cation was investigated with low-temperature matrix ESR and semiempirical MO calculations. It was found that the unpaired electron, which is originally delocalized throughout the cyclohexane ring, tends to be confined
Study of lithium cation perturbation on the spin density distribution in sym-trinitrobenzene radical anion
โ Scribed by R.K. Gupta; J. Subramanian; N.K. Ray; P.T. Narasimhan
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 377 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The effect of lithium cation association on the spin density distribution in sym-Trinitrobenzene radical anion has been studied here both experimentnl:y and theoretically.
The experimental observations can be satisfactorily explained by simple HUckel molecular orbital calculations only when the cation is assumed to be tightly bound to one of the nitro groups.
๐ SIMILAR VOLUMES
The radical anions of 5H-dibenzo[a,d]cycloheptene (9), 5H-dibenzo[c,fl[ 1,2]diazepine (lo), 5,6-dihydrodibenzo[a,e]cyclooctene (1 l), 5,6-dihydrodibenzo[c,g][ 1,2]diazocine (It), and (E)-2,2,5,5-tetramethyl-3,4-diphenylhex-3-ene (13) were characterized by ESR and ENDOR spectroscopy. Their hyperfine