Efficient Formation of Deuterated Methanol by H-D Substitution on Interstellar Grain Surfaces

Details Efficient Formation of Deuterated Methanol by H-D Substitution on Interstellar Grain Surfaces Efficient Formation of Deuterated Methanol by H-D Substitution on Interstellar Grain Surfaces

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..855...69n&link_type=abstract

ASTROCHEMISTRY: From Laboratory Studies to Astronomical Observations. AIP Conference Proceedings, Volume 855, pp. 69-75 (2006).

Biology

1

Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, Atomic, Molecular, And Chemical, And Grain Processes, Chemical Reactions, Energy Disposal, And Angular Distribution, As Studied By Atomic And Molecular Beams, Chemical Exchanges, Astrobiology And Astrochemistry Of The Solar System And Interplanetary Space

Scientific paper

We performed an experiment in which pure solid CO was simultaneously exposed to cold H and D atoms at 10 K, and observed efficient formation of H2CO, CH3OH and deuterated isotopologues HDCO, D2CO, CH2DOH, CHD2OH, and CD3OH. The D/H ratios obtained for formaldehyde and methanol are in good agreement with previously reported observations. We found that the H-D substitution reaction in methanol is a key process in the formation of deuterated methanol, especially multi-deuterated isotopologues CHD2OH and CD3OH.

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