Direct photodissociation of CH bonds in polycyclic aromatic hydrocarbons - Implications for the infrared emission bands

Details Direct photodissociation of CH bonds in polycyclic aromatic hydrocarbons - Implications for the infrared emission bands Direct photodissociation of CH bonds in polycyclic aromatic hydrocarbons - Implications for the infrared emission bands

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...343..208b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 343, Aug. 1, 1989, p. 208-211.

Astronomy and Astrophysics

Astrophysics

13

Cyclic Hydrocarbons, Emission Spectra, Infrared Spectra, Interstellar Chemistry, Photodissociation, Chemical Bonds, Photochemical Reactions, Spectral Bands

Scientific paper

Direct photodissociation is proposed as an important destruction mechanism for the CH bonds in large interstellar molecules exposed to UV radiation. The implications for the unidentified infrared emission bands (UIR) are examined assuming that polycyclic aromatic hydrocarbons (PAHs) are the carriers of the bands. Direct photodissociation can account for extensive dehydrogenation of PAHs which was inferred from the analysis of UIR spectra.

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