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Issue 32, 2010
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Integral and differential cross sections of reactions relevant to astrochemistry

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Abstract

In recent years, kinetic experiments have shown that, contrary to the Arrhenius concept, many neutral–neutral reactions remain fast at very low temperature. Such behaviour ranks them as important processes to be considered in the chemical networks that model the synthesis and the fate of molecules observed in the interstellar medium. This Perspective Article aims to review complementary crossed beam experiments of relevant neutral–neutral reactions performed in the low collision energy regime. A few selected reactions are considered, with particular emphasis on carbon-atom reactions with unsaturated hydrocarbons. It is shown, with the example of the C + C2H2 system, that the conjunction of kinetic and dynamic experiments can provide a consistent set of detailed rate coefficients for a multichannel reaction, relevant to astrochemical models.

Graphical abstract: Integral and differential cross sections of reactions relevant to astrochemistry

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Publication details

The article was received on 26 Feb 2010, accepted on 26 Apr 2010 and first published on 28 Jun 2010


Article type: Perspective
DOI: 10.1039/C003656K
Citation: Phys. Chem. Chem. Phys., 2010,12, 9154-9164

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    Integral and differential cross sections of reactions relevant to astrochemistry

    M. Costes and C. Naulin, Phys. Chem. Chem. Phys., 2010, 12, 9154
    DOI: 10.1039/C003656K

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