The reaction of CF3 radicals with Ha0 (D20) has been studied over the range of 533-723 K using the photolysis and the pyrolysis of CFJ as the free radical source. Arrhenius pa- rameters for the reactions where X = H or D, relative to CF:j radical recombination are given by log kHlkf'2 = (5.12 f 0.1
The reaction of O(1D) with CCl2O, CFClO and CF2O
โ Scribed by R.K.M. Jayanty; R. Simonaitis; J. Heicklen
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 491 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0047-2670
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๐ SIMILAR VOLUMES
Flash photolysis/time-resolved UV absorption measurements of the rate constants for the title reactions are reported over the temperature range 2 lo-253 K. The photolysis of F2/CF,H/03/02/N, gas mixtures reveals that the formation of CF302 and CF,O radicals has no measurable effect on the ozone conc
A relative rate approach has , been used to measure the reactivity of CF,O radicals towards ozone. Using k(CFaO+NOa)=2,7x IO-" cm' molecule-' s-' as the referencereactioqanupperlimit ofk(CF,O+Os) 63~ 10-'4cmSmolecule-' was determined at 295 K and 700 Torr of O2 diluent. The implications for the atmo
Haloacetyl peroxynitrates are intermediates in the atmospheric degradation of a number of haloethanes. In this work, thermal decomposition rate constants of CF3C(0)02N02, CClFzC(0)02N02, CC12FC(0)02N02, and CC13C(0)02N02 have been determined in a temperature controlled 420 1 reaction chamber. Peroxy
O ( l D ) , produced from the photolysis ofN,O at 2139 A, reacts with N,O in accord with: We have used the method of chemical difference to obtain an accurate measure of k,/k, = 0.59 f 0.01. Furthermore, the quantum yield of production of O ( , P ) , either on direct photolysis or on deactivation o
The reactions of CCl, with O(,P) and O2 and those of CC1302 with NO have been studied at 295 K using discharge flow methods with helium as the bath gas. The rate coefficient for the reaction of CCI, with 0 was found to be (4.2 2 0.6) x lo-'' cm3/s and that for CCI3O2 with NO was (18.6 2 2.8) x lo-''