title: Reactivity induced at 25 K by low-energy electron irradiation of condensed NH3-CH3COOD (1 : 1) mixture.
abstract: Chemical reactivity is observed following electron irradiation of a binary mixture of ammonia (NH(3)) and acetic acid (CH(3)COOD) 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 approximately 13 eV. The mechanisms may involve NH radicals interaction with CH(3)COOD molecules. Then glycine formation does not imply any displacement of reactants, so that it involves only NH(3) and CH(3)COOD neighboring molecules.
authors.affiliation: Laboratoire des Collisions Atomiques et Moléculaires CNRS-Université Paris-Sud UMR 8625, FR LUMAT, bât. 351, Université Paris-Sud, 91405 Orsay Cedex, France.
authors.forename: Anne
authors.initials: A
authors.lastname: Lafosse
authors.forename: Mathieu
authors.initials: M
authors.lastname: Bertin
authors.forename: Alicja
authors.initials: A
authors.lastname: Domaracka
authors.forename: Damian
authors.initials: D
authors.lastname: Pliszka
authors.forename: Eugen
authors.initials: E
authors.lastname: Illenberger
authors.forename: Roger
authors.initials: R
authors.lastname: Azria
mesh_terms: D019342:Acetic Acid / Q000737:chemistry*; D000641:Ammonia / Q000737:chemistry*; D004583:Electrons; D004735:Energy Transfer; D005998:Glycine / Q000096:biosynthesis; D012542:Scattering, Radiation; D013055:Spectrophotometry, Infrared; D046590:Spectroscopy, Electron Energy-Loss; D013059:Spectrum Analysis, Raman; D013696:Temperature
chemical_list: D000641:Ammonia; D019342:Acetic Acid; D005998:Glycine