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- W2079546840 abstract "A new technique for the detection of F(2P) atoms in a discharge flow system is described. The fast reaction F + Br2 → BrF4 Br has been used, in the presence of excess Br2, to rapidly convert the F atoms to BrF. The BrF is then detected by laser-induced fluorescence, excited on the 5-0 or 7-0 bandheads of the B3II(0+)-X1Σ+ transition using a pulsed, tunable dye laser. Using this sensitive spectroscopic marker technique, concentrations of F(2P) ⩾ 3 × 109 cm−3 can be detected. This method has been used to measure the rates of reaction of F(2P) atoms with CH4 and CHF3 under pseudo-first order conditions with [Reagent] ⪢ [F]. The following rate constants were obtained at 298 K and 1 Torr pressure (in cm3 molecule−1 s−1 with errors quoted at 1σ), in good agreement with the literature values: h2 = (6.6±0.4)×10−11 for the reaction F + CH4 → HF - CH3 and k3 = (1.5±0.1)×10−13 for the reaction F + CHF3 → HF + CF3." @default.
- W2079546840 created "2016-06-24" @default.
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- W2079546840 date "1983-09-01" @default.
- W2079546840 modified "2023-09-23" @default.
- W2079546840 title "Kinetics and detection of F(2P) atoms in a discharge flow system" @default.
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- W2079546840 doi "https://doi.org/10.1016/0301-0104(83)85259-8" @default.
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