Flash photolysis resonance

Atkinson Pitts Jr. 1977 quoted, Gaffney Levine 1979) k0H = 5.07 x 10-11 cm3 molecule-1 s-1 at 297.2 K, measured range 297 125 K (flash photolysis-resonance fluorescence, Atkinson Pitts 1977)... 

The reactions of the ground-state oxygen atom 0(3P) with symmetric aliphatic ethers in the gas phase were investigated by Liu et al. (1990) using the flash photolysis resonance fluorescence technique. These reactions were found to be first-order with respect to each reactant. The rate constants for three ethers at several temperatures are as follows ... 

Wallington, T.J. and Kurylo, M.J. Flash photolysis resonance fluorescence investigation of the gas-phase reactions of OH radicals with a series of aliphatic ketones over the temperature range 240-440 K, J. Phys. Chem., 91 (9) 5050-5054, 1987. Wallnoefer, P.R., Safe, S., and Hutzinger, 0. Microbial demethylation and debutylation of four phenylurea herbicides, Pestic. Biochem. Physiol., 3 253-258, 1973. 

As the name implies, this technique relies on flash photolysis to generate the reactive species A. In one of the most common configurations, resonance or induced fluorescence is used to monitor the decay of A—hence the name flash photolysis-resonance fluorescence (FP-RF). Since lasers are now frequently used as the photolysis source, the term laser flash photolysis-resonance fluorescence (LFP-RF) is also used. 

Orkin, V. L., R. E. Huie, and M. J. Kurylo, Atmospheric Lifetimes of HFC-143a and HFC-245fa Flash Photolysis Resonance Fluorescence Measurements of the OH Reaction Rate Constants, J. Phys. Chem., 100, 8907-8912 (1996). 

Studies in our laboratory, utilizing both conventional flash photolysis-resonance fluorescence (FP-RF) (2.23) and PLP-PUF (2) indicate that reaction (3) proceeds via a complex mechanism which involves abstraction, reversible addition, and adduct reaction with O2. In the absence of (X the FP-RF studies obtain a 298K rate constant of 4.4 x 10 12cm3molecule is 1. The observed kinetic isotope effect and positive activation energy are consistent with the reaction proceeding via H atom abstraction,... 

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