Trifluoromethoxy radical formation (by O-atom addition to trifluoromethyl) and dissociation (by F-atom elimination) are studied by ab initio molecular-orbital theory. The activation enthalpy (298 K) for F-atom elimination is 35.3 kcal mol-' at the UMP4SDQ/6-3 1 G\*NUHF/6-3 1 G\* + AZPE +A( H-E,) lev
Theoretical characterization of the trifluoromethoxy radical
โ Scribed by J.S. Francisco; I.H. Williams
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 597 KB
- Volume
- 110
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
The electronic structure, geometry, vibrational frequencies and intensities for the gound and !irst excited states of the trifhrorometho\y radical have been calculated at the RIiF/3-21C level of theory. The consequences of Jahn-Teller distortion and of negative hyperconjugation are discussed and the advantage of analytical determination of harmonic force constants is demoastmted.
๐ SIMILAR VOLUMES
We report a preliminary ab initio study of the ground state of the HCCS radical. The results are discussed in relation to a tiansient absorption spectrum observed in the flash photolysis of thiophene.