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Volume 168, 2014
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Free-electron laser induced processes in thin molecular ice

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Abstract

Intermolecular reactions in and on icy films on silicate and carbonaceous grains constitute a major route for the formation of new molecular constituents in interstellar molecular clouds. In more diffuse regions and in protoplanetary discs, energetic radiation can trigger reaction routes far from thermal equilibrium. As an analog of interstellar ice-covered dust grains, highly-oriented pyrolytic graphite (HOPG) covered with D2O, NO, and H atoms is irradiated by ultrashort XUV pulses and the desorbing ionic and neutral products are analysed. The yields of several products show a nonlinear intensity dependence and thus enable the elucidation of reaction dynamics by two-pulse correlated desorption.

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Publication details

The article was received on 02 Dec 2013, accepted on 17 Dec 2013 and first published on 17 Dec 2013


Article type: Paper
DOI: 10.1039/C3FD00116D
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Citation: Faraday Discuss., 2014,168, 553-569
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    Free-electron laser induced processes in thin molecular ice

    B. Siemer, S. Roling, R. Frigge, T. Hoger, R. Mitzner and H. Zacharias, Faraday Discuss., 2014, 168, 553
    DOI: 10.1039/C3FD00116D

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