UMNDO reaction path calculations for trapping of the ethylene-cation radical with ground state oxygen suggest that formation of a dioxetane radical cation proceeds through the intermediacy of a peroxycation radical. The predicted enthalpy of activation (Aβ¬β¬% = 13.8 kcal/mol) is consistent with rapid
The theoretical reaction path for the cation radical vinylcyclobutane rearrangement: A concerted SR path
β Scribed by Nathan L. Bauld
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 260 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
β¦ Synopsis
Ab initio reaction path calculations for the cation radical vinylcyclobutane rearrangement at the MP2l 6-31G*//3-21G level reveal a concerted, sr reaction path with an activation energy of 9.4 kcal/mol. The vinylcyclobutane cation radical itself, at both the MP2 and MP3 levels of theory has predominant olefin cation radical character but with modest stretching of one of the adjacent ring carbon-carbon bonds.
π SIMILAR VOLUMES
## Abstract The stepwise and concerted pathways for the McLafferty rearrangement of the radical cations of butanal (Bu^+^) and 3βfluorobutanal (3FβBu^+^) are investigated with density functional theory (DFT) and __ab initio__ methods in conjunction with the 6β311+G(d,p) basis set. A concerted trans