Photoinduced products from cold coronene clusters. A route to hydrocarbonated nanograins?

Details Photoinduced products from cold coronene clusters. A route to hydrocarbonated nanograins? Photoinduced products from cold coronene clusters. A route to hydrocarbonated nanograins?

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...442..239b&link_type=abstract

Astronomy and Astrophysics, Volume 442, Issue 1, 2005, pp.239-247

Astronomy and Astrophysics

Astrophysics

13

Astrochemistry, Molecular Processes, Methods: Laboratory, Ism: Molecules, Ism: Dust, Extinction, Infrared: Ism

Scientific paper

Free cold pure coronene clusters have been formed in a gas aggregation source
and irradiated with excimer laser pulses. Analysis of the photoproducts thanks to a
reflectron time-of-flight mass spectrometer showed that
new ionic compounds are formed. These species may include Polycyclic Aromatic Hydrocarbons (PAHs)
larger than coronene, PAH-coronene clusters,
as well as coronene clusters branched with unsaturated aliphatic chains.
The relevance of these results in the context of
interstellar medium chemistry, and in particular the carriers
of the so-called aromatic infrared emission bands (AIBs), is discussed.

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