Very low temperature formaldehyde reactions and the build-up of organic molecules in comets and interstellar ices

Very low temperature formaldehyde reactions and the build-up of organic molecules in comets and interstellar ices

We have investigated thermally promoted reactions of formaldehyde (H 2CO) in very low temperature ices. No such reactions occurred in ices of pure formaldehyde. However, addition of trace amounts of ammonia (NH 3) were sufficient to catalyze reactions at temperatures as low as 40 K. Similar reaction...

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Veröffentlicht in:Advances in space research 1995-03, Vol.15 (3), p.401-406
Hauptverfasser: Schutte, W.A., Allamandola, L.J., Sandford, S.A.
Format: Artikel
Sprache:eng
Schlagworte:
Ammonia - chemistry
Evolution, Chemical
Extraterrestrial Environment
Formaldehyde - chemistry
Ice - analysis
Life Sciences (General)
Meteoroids
Resins, Synthetic - chemistry
Space life sciences
Spectroscopy, Fourier Transform Infrared
Temperature
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Zusammenfassung:We have investigated thermally promoted reactions of formaldehyde (H 2CO) in very low temperature ices. No such reactions occurred in ices of pure formaldehyde. However, addition of trace amounts of ammonia (NH 3) were sufficient to catalyze reactions at temperatures as low as 40 K. Similar reactions could take place in interstellar ices and in Comets and produce considerable amounts of organic molecules.
ISSN:0273-1177
1879-1948
DOI:10.1016/S0273-1177(99)80110-0