Efficient surface formation route of interstellar hydroxylamine through NO hydrogenation. I. The submonolayer regime on interstellar relevant substrates.

@article{Congiu2012EfficientSF,
  title={Efficient surface formation route of interstellar hydroxylamine through NO hydrogenation. I. The submonolayer regime on interstellar relevant substrates.},
  author={E Congiu and Henda Chaabouni and Carine Laffon and Ph. Parent and Saoud Baouche and Francois Dulieu},
  journal={The Journal of chemical physics},
  year={2012},
  volume={137 5},
  pages={
          054713
        }
}
Dust grains in the interstellar medium are known to serve as the first chemical laboratory where the rich inventory of interstellar molecules are synthesized. Here we present a study of the formation of hydroxylamine--NH(2)OH--via the non-energetic route NO + H (D) on crystalline H(2)O and amorphous silicate under conditions relevant to interstellar dense clouds. Formation of nitrous oxide (N(2)O) and water (H(2)O, D(2)O) is also observed and the reaction network is discussed. Hydroxylamine and… 
Efficient surface formation route of interstellar hydroxylamine through NO hydrogenation. II. The multilayer regime in interstellar relevant ices.
TLDR
The main conclusion is that hydroxyl-amine formation takes place via a fast and barrierless mechanism and it is found to be even more abundantly formed in a water-rich environment at lower temperatures.
Experimental and Theoretical Study of the Chemical Network of the Hydrogenation of NO on Interstellar Dust Grains
Nitrogen Monoxide (NO) is observed in the gas phase of molecular clouds. It may accrete on dust grains and there its hydrogenation should lead to hydroxylamine (NH 2 OH), the same way that CO is
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The laboratory work presented here, simulates the chemistry on icy dust grains as typical for the 'CO freeze-out stage' in dark molecular clouds. It differs from previous studies in that solid-state
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Solid-state astrochemical reaction pathways have the potential to link the formation of small nitrogen-bearing species, like NH_3 and HNCO, and prebiotic molecules, specifically amino acids. To date,
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TLDR
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TLDR
This work explores experimentally the formation of water molecules from O(2) + D reaction on bare silicate surfaces that simulates the grains present in the diffuse interstellar clouds at visual extinctions.
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Solid-state formation of CO 2 via the H 2 CO + O reaction
Context. The formation of carbon dioxide ice in quiescent regions of molecular clouds has not yet been fully understood, even though CO2 is one the most abundant species in interstellar ices. Aims.
Efficient formation route of the prebiotic molecule formamide on interstellar dust grains
Interstellar Complex Organic Molecules are thought to be the building blocks of more complex pre-biotic compounds. In particular, formamide (or methanimide, NH 2 CHO), is presented as a
Solid state chemistry of nitrogen oxides--part I: surface consumption of NO.
TLDR
It is found that NO2 is efficiently formed in NO + O/O2/O3/N solid surface reactions, which are essentially barrier free and offer a pathway for the formation of NO2 in space.
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