## OMS Letters Dear Sir ## ISOMERIZATION OF THE NITROETHYLENE RADICAL CATION We recently reported on the generation of the hitherto uncharacterized nitrosoethylene (1) by low-pressure pyrolysis. The structural assignment was based on real-time collision activation mass spectrometric analysis in
The isomerizations of ethyl carbamate radical cations
β Scribed by Helge Egsgaard; Lars Carlsen
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 195 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Ab initio MO calculations on the methyl dithiofonnate system show that the corresponding radical cation has a a-ground electronic state in contrast with the interpretation recently given by Rhodes (J. Chem. Sot. Chem. Commun. ( 1988) 1477) from an ESR study on the ethyl dithioacetate radical cation.
## Abstract The previously discussed principles involved in electrocyclic reactions of openshell ions are exemplified for a type C system, the radical cation couple quadricyclane^+^ (**Q**^+^)/norbornadiene^+^ (**NBD**^+^). Exhaustive calculations (MINDO/3) for the various states of the ions suppor
## Spontaneous and catalyzed isomerizations of the acetamide radical cation The use of mass spectrometry for the study of peptides (sequencing, cationization, H-D exchanges, etc.) is a rapidly growing field. 1 Therefore, the chemistry of ionized amides, studied by mass spectrometry, is of consider
It has been reported that restricted and unrestricted MP2 ab initio calculations of the energy difference between the formaldehyde (H,CO+') and hydroxymethylene (HCOH+.) radical cations are seriously in error because of poor convergence of the perturbation series. We had reported a study of the form