INTERSTELLAR CARBON-CHEMISTRY - REACTION-RATES OF NEUTRAL ATOMIC CARBON WITH ORGANIC-MOLECULES

Journal article

Experimentally measured rate constants for the chemical reactions of ground state carbon atoms with several alkenes and alkynes are found to have surprisingly large values (∼10-10-10-9 cm3 molecule-1 s-1). The rate constants increase significantly with the size of the molecule. The experimental results agree well with a simple classical capture theory which predicts a dependence of the rate constant on N1/3, where N is the number of carbon atoms in the molecule. The results suggest that the reactions of ground state carbon atoms with organic molecules should be included in the chemical reaction networks used to model interstellar clouds.

Authors: Clary, D; Haider, N; Husain, D; Kabir, M

• Publication status: Published
• Publisher: Institute of Physics Publishing
• Journal: ASTROPHYSICAL JOURNAL
• Volume: 422
• Issue: 1
• Pages: 416-422
• Publication date: 1994-02-10
• DOI: 10.1086/173737
• EISSN: 1538-4357
• ISSN: 0004-637X
• Language: English
• Keywords: ATOMIC PROCESSES; ATOMIC DATA; MOLECULAR DATA; MOLECULAR PROCESSES