The rare cocificwn ior the rcact~on oiCF,02 with NO has been mcasurcd at 295 R m hcbum usins 3 ilow tube nmplcd by 2 rnxs spcctromurcr The KIIUC obrlmed ior this raw coeiircicnt was (17 8 f 3 6) x IO-'\* crK3 s-t and iound to bc indcpcndcnr of [Hc] over the range (6 3-16 8) x lOI cmm3. Tbls value is
Kinetics of the reaction of O(3P) with CF3NO
โ Scribed by R. P. Thorn; J. M. Nicovich; J. M. Cronkhite; S. Wang; P. H. Wine
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 580 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
A laser flash photolysis-resonance fluorescence technique has been employed to study the kinetics of the reaction of O(3P) with CF3NO (kz) as a function of temperature. Our results are described by the Arrhenius expression k z ( T ) = (4.54 ? 0.70) X 10-12exp[(-560 i 46)/T] cm3molecule-'s-' (243 K 5 T 5 424 K); errors are 2 ~7 and represent precision only. The O(3P) + CF3NO reaction is sufficiently rapid that CF3NO cannot be employed as a selective quencher for Oz(a'A,) in laboratory systems where O(3P) and Oz(a'A,) coexist, and where O(3P) kinetics are being investigated.
๐ SIMILAR VOLUMES
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
A pulse radiolysis technique has been used to measure a rate constant of (6.6f 1.3) x lo-r2 cm3 molecule-' s-i for the association reaction between CF3C(0)02 radicals and NO2 at 295 K and one atmosphere total pressure of SF, diluent. A FAIR/ smog chamber system was used to study the thermal decompos
The reaction of CF, with NO, was studied at 296 2 2 K using two different absolute techniques Absolute rate constants of ( I 6 ? 0.3) X lo-" and ( 2 1-03+07) X lo-" cm3 molecule-' s-' were derived by IR fluorescence and UV absorption spectroscopy, respectively The reaction proceeds via two reaction
&te coefficients for the reaction of Cl-I,0 ~th NO 2 were measured over the temperature range 21-O-473 K and over tie pressure range 0 6-4 0 Torr using a flow reactor apparatus uqth laser-Induced fluorescence (LIF) detection of CH,O The results were fitted LO extract recombmatlon and &sproporuonauon