Earlier arguments concerning D(CF302-CF3) and D(CF3-02) are shown to be probably wrong. New values of 86 and 49 kcal/mol, respectively, are derived. C-0 bond strengths are compared between CF3-and CH3-containing compounds. This relation is of value only if D,(Oz) is independent of X. This is equival
A reexamination of the pyrolysis of bis trifluoromethyl peroxide
β Scribed by L. Batt; R. Walsh
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 595 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0538-8066
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β¦ Synopsis
Abstract
The literature results for the pyrolysis of bis trifluoromethyl peroxide are reexamined and compared with those for dimethyl peroxide. The thermochemistry yields the result that the Οβbond energy in carbonyl fluoride is 96 Β± 10 kcal/mol compared to 74 kcal/mol for that in formaldehyde. Thermodynamic additivity contributions are derived for the Cο£Ώ(F)~3~(O) and Oο£Ώ(C)(F) groups. Some conclusions are drawn in relation to the oxidation of halogeno methyl radicals and the chemistry of the atmosphere.
π SIMILAR VOLUMES
Bis(trifluoromethy1) peroxide is readily dissociated by multiple infrared photon excitation at COz laser wavelengths. The primary dissociation product is CF30; approximately 85% of the nascent radicals are further dissociated in the laser field to form CFzO and F. The F atoms then react with the rem