Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..489s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 489-493.
Astronomy and Astrophysics
Astrophysics
26
Aromatic Compounds, Cyclic Hydrocarbons, Interstellar Chemistry, Organic Chemistry, Organometallic Polymers, Hydrogen Bonds, Interstellar Matter
Scientific paper
The 3.3 micron feature, characteristic of aromatic C-H bonds (v C-H), is observed in emission everywhere in the interstellar medium (ISM). This demonstrates the presence of aromatic molecules in the ISM (PAHs or others). We propose that efficient reactions should occur between aromatics and transition metals to form new organometallic molecules. The organometallic bonding is of the same order of stability as an aromatic C-H bond; such bonding modifies the IR spectrum of aromatic compounds by enhancing the 3.3 micron feature and decreasing the bands in the 11-12 micron range (gamma C-H). Furthermore, the existence of organometallic reactions could contribute significantly to the metal depletion in the ISM.
Chaudret Bruno
Klotz Alain
Le Beuze A.
Rabaa H.
Ristorcelli Isabelle
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