Astronomy and Astrophysics – Astronomy
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.268..103p&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 268, NO. 1/MAY1, P. 103, 1994
Astronomy and Astrophysics
Astronomy
5
Molecular Processes - Ism: Clouds - Ism: Molecules
Scientific paper
The presence is suggested of significant abundances of large molecular di-cations (of fullerenes and polycyclic aromatic hydrocarbons) within the interstellar medium. Possible roles are discussed for charge-separating reactions of interstellar di-cations in the chemical evolution of cold, dense interstellar clouds. Several features of such charge-separation reactions are seen to be ideally suited for the production of internally cold, highly kinetic ally excited ions, and in this capacity such reactions may serve as a driving force for the subsequent occurrence of hydrogen-atom abstraction reactions with the dominant dense-cloud species H2. Factors influencing reaction sequences of this type are discussed, as are some examples relevant to the formation of molecules detected within interstellar clouds.
Bohme Diethard K.
Petrie Simon
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