Felix spectroscopy of likely astronomical molecular ions: HC3O+, C2H3CNH+, and C2H5CNH+
Thorwirth, Sven
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https://hdl.handle.net/2142/97180
Description
Title
Felix spectroscopy of likely astronomical molecular ions: HC3O+, C2H3CNH+, and C2H5CNH+
Author(s)
Thorwirth, Sven
Contributor(s)
McCarthy, Michael C.
Martin-Drumel, Marie-Aline
Schlemmer, Stephan
Jusko, Pavol
Brünken, Sandra
Asvany, Oskar
Issue Date
2017-06-23
Keyword(s)
Ions
Abstract
Infrared signatures of three molecular ions of relevance to the interstellar medium and planetary atmospheres_x000d_
have been detected at the Free Electron Laser for Infrared eXperiments, FELIX, at Radboud University (Nijmegen, The Netherlands) _x000d_
in combination with the 4K FELion 22-pole ion trap facility. Mid-infrared vibrational modes of protonated tricarbon monoxide, HC$_3$O$^+$, _x000d_
protonated vinyl cyanide, C$_2$H$_3$CNH$^+$, _x000d_
and protonated ethyl cyanide, C$_2$H$_5$CNH$^+$, were detected using resonant photodissociation of the respective Ne-complexes by monitoring _x000d_
the depletion of their cluster mass signal as a function of wavenumber. The infrared fingerprints compare very favorably_x000d_
with results from high-level quantum-chemical calculations performed at the CCSD(T) level of theory.
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