Ammonia formation from the reactions of H atoms with N atoms trapped in a solid N2 matrix at 10-30 K

Details Ammonia formation from the reactions of H atoms with N atoms trapped in a solid N2 matrix at 10-30 K Ammonia formation from the reactions of H atoms with N atoms trapped in a solid N2 matrix at 10-30 K

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...443..363h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 443, no. 1, p. 363-370

Astronomy and Astrophysics

Astrophysics

18

Ammonia, Hydrogen Atoms, Interstellar Chemistry, Nitrogen Atoms, Cosmic Dust, Cryogenic Cooling, Electron Paramagnetic Resonance, Matrix Materials

Scientific paper

The reactions of H atoms with N atoms trapped in an N2 matrix were studied. The N2 matrix, containing N atoms, was formed by depositing plasma-activated N2 gas over the surface of a cryocooler at 10-30 K. The deposited active nitrogen was reacted with H atoms by spraying plasma-activated hydrogen gas over the surface of the deposited sample. It was found that the H atoms diffuse inside the N2 matrix and react with N atoms to form NH3 molecules. The diffusion of H atoms in N2 and H2O matrices at 10-30 K and the absence of H subtraction from NH3 by H atoms were confirmed by an electron spin resonance experiment.

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