Reactivity induced at 25 K by low-energy electron irradiation of condensed NH3–CH3COOD (1 : 1) mixture

Anne Lafosse; Mathieu Bertin; Alicja Domaracka; Damian Pliszka; Eugen Illenberger; Roger Azria

doi:10.1039/B613479C

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Reactivity induced at 25 K by low-energy electron irradiation of condensed NH₃–CH₃COOD (1 : 1) mixture†

Anne Lafosse,*^a Mathieu Bertin,^a Alicja Domaracka,^ab Damian Pliszka,^a Eugen Illenberger^c and Roger Azria^a

Author affiliations

* Corresponding authors

^a Laboratoire des Collisions Atomiques et Moléculaires CNRS-Université Paris-Sud (UMR 8625, FR LUMAT), bât. 351, Université Paris-Sud, Orsay Cedex, France

^b Atomic Physics Group, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, ul. Narutowicza 11/12, Gdanks, Poland

^c Institut für Chemie—Physikalische und Theoretische Chemie, Freie Universität Berlin, Takustrasse 3, Berlin, Germany

Abstract

Chemical reactivity is observed following electron irradiation of a binary mixture of ammonia (NH₃) and acetic acid (CH₃COOD) at 25 K, without any subsequent thermal activation, as evidenced by vibrational high resolution electron energy loss spectroscopy (HREELS). Analysis of the HREEL spectra and comparison with infrared and Raman data of different molecules are compatible with glycine formation in its zwitterionic form. The onset for electron induced reaction is found to be at about ∼13 eV. The mechanisms may involve NH radicals interaction with CH₃COOD molecules. Then glycine formation does not imply any displacement of reactants, so that it involves only NH₃ and CH₃COOD neighboring molecules.

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Article information

DOI: https://doi.org/10.1039/B613479C
Article type: Paper
Submitted: 18 Sep 2006
Accepted: 08 Nov 2006
First published: 14 Nov 2006

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Phys. Chem. Chem. Phys., 2006,8, 5564-5568

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Reactivity induced at 25 K by low-energy electron irradiation of condensed NH₃–CH₃COOD (1 : 1) mixture

A. Lafosse, M. Bertin, A. Domaracka, D. Pliszka, E. Illenberger and R. Azria, Phys. Chem. Chem. Phys., 2006, 8, 5564 DOI: 10.1039/B613479C

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