New experiments and interpretations concerning the ``XCN'' band in interstellar ice analogues

Details New experiments and interpretations concerning the ``XCN'' band in interstellar ice analogues New experiments and interpretations concerning the ``XCN'' band in interstellar ice analogues

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...357..787h&link_type=abstract

Astronomy and Astrophysics, v.357, p.787-792 (2000)

Astronomy and Astrophysics

Astrophysics

27

Infrared: Ism: Lines And Bands, Ism: Molecules, Ism: Abundances, Molecular Processes, Ism: Dust, Extinction

Scientific paper

Evidence for the formation of OCN^- in interstellar ice analogues is summarized with an emphasis on the recent experiments of Demyk et al. (\cite{demyk98}). Their experiments are reinterpreted in terms of two different types of chemical reactions, acid-base and oxidation-reduction. New spectra of UV-photolyzed and p^+-irradiated ices are presented, and reasons for similarities considered. The role of e^- and H^+ scavengers in revealing ice photo- and radiation chemistries is stressed, and it is concluded that electron-transfer reactions may play a more important role than commonly thought.

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