Polar Effects in Decomposition of Peroxidic Compounds and Related Reactions
β Scribed by Sung Soo Kim
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 11 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
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π SIMILAR VOLUMES
The photolysis of 1,1,3,3-tetrafluoroacetone has been reinvestigated as a source of CHFz radicals at temperatures up to 578'K, and the following rate constant ratio was determined for the reactions (8) (7) 2CHF2 -+ CHFzCHFz\* CHFz + CHFzCOCHFz -+ CHzFz + CF~COCHFZ log (k~/k~1'2)(mole-1'zcc1'2sec-1'2
Rate constants (k) of radical addition reactions between 15 carbon-and sulfur-centered radicals and 15 vinyl-type alkenes were collected from the literature. Three descriptor variables {a polar (Hammett) sigma scale [s(H)] and two radical sigma scales as defined by Creary and co-workers [s Γ (C)] an