A polarized CARS investigation of the fine structure population inversion of Cl atoms from laser photolysis of ICl and the quenching of Cl(2 P 1/2) by O2 |
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| Authors: | Lixin Wang W. E. Jones |
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| Affiliation: | (1) Department of Chemistry, Saint Mary's University, B3H 3C3 Halifax, Nova Scotia, Canada;(2) Present address: Department of Chemistry, University of Windsor, N9B 3P4 Windsor, ON, Canada |
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| Abstract: | The time resolved polarized CARS technique has been used to detect Cl atoms produced by photolysis of ICl in the presence and absence of O2. A population inversion was observed between the ground state electronic levels Cl(2P1/2) and Cl(2P3/2). The rate constant for Cl(2P1/2) decay (quenching + reaction) in ICl was determined to be (3.2±0.2)×10–13 cm3/molecule×s; the rate constant for Cl(2P3/2) reaction with ICl was determined to be (7.8±0.5)×10–12 cm3/molecule×s; and the rate constant for Cl(2P1/2) quenching by O2 was determined to be (1.9±0.2)×10–13 cm3/molecule×s. |
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| Keywords: | 42.65.Cq 82.20.Pm 82.40.Tc |
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