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Author(s):   Chen, L.; Mizukado, J.; Kutsuna, S.; Tokuhashi, K.; Sekiya, A.
Title:   Rate constants of gas-phase reactions of trans-cyc-CF2CF2CHFCHF- and cyc-CF2CF2CH2CHCl- with OH radicals at 253-328 K
Journal:   Chem. Phys. Lett.
Volume:   418
Page(s):   519 - 523
Year:   2006
Reference type:   Journal article
Squib:   2006CHE/MIZ519-523

Reaction:   ·OH + trans-1,1,2,2,3,4-hexafluorocyclobutane → Products
Reaction order:   2
Temperature:   253 - 328 K
Pressure:  0.27 bar
Rate expression:   7.64x10-13 [±2.96x10-13 cm3/molecule s] e-11225 [±915 J/mole]/RT
Category:  Experiment
Data type:   Relative value normalized by a reference value
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Direct photolysis
Time resolution:   In both real time and by end product analysis
Analytical technique:   Gas chromatography
Comments:   OH radicals produced by teh 254-nm photolysis of O3 in the presence of water vapor.
Based on relative rate measurements, with k(OH + CH4) = 2.45x10-12exp(-1775/T)cm3s-1 and k(OH + CH3F)=2.5x10-12exp(-1430/T)cm3s-1.

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Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
253 3.68E-15
275 5.64E-15
300 8.49E-15
325 1.20E-14
328 1.25E-14