Atmospheric fate of alkoxy radicals: branching ratio of evolution pathways for 1-propoxy, 2-propoxy, 2-butoxy and 3-pentoxy radicals

Literature Information

Publication Date 2003-10-02
DOI 10.1039/B307761F
Impact Factor 3.676
Authors

N. Meunier, J. F. Doussin, E. Chevallier, R. Durand-Jolibois, B. Picquet-Varrault, P. Carlier


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Abstract

As the last step of VOC oxidation in the atmosphere, the evolution of alkoxy radicals determines the nature and the concentration of the secondary compounds formed. Branching ratios between decomposition and reaction with O2 of 1-propoxy, 2-propoxy, 2-butoxy and 3-pentoxy radicals have been measured at room temperature and atmospheric pressure in a simulation chamber using FTIR spectroscopy as an analytical device. kdec/kO2 is equal to (3.8 ± 0.4) × 1016, (2.9 ± 0.3) × 1016, (2.9 ± 0.4) × 1018 and (4.1 ± 0.8) × 1018 molecules cm−3 for each, respectively. This ratio has been observed to vary, depending on the leaving alkyl group and the class of alkoxy. No additional decomposition due to excited radicals has been observed.

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Contents list

Front/Back Matter

DOI: 10.1039/C6CP90135B

Contents list

Front/Back Matter

DOI: 10.1039/C6CP90124G

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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