Spectroscopic studies of protonated amines: CH3NH3+ and C2H5NH3+
Schlemmer, Stephan
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1344321.pptx
3663.pdf
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https://hdl.handle.net/2142/104528
Description
Title
Spectroscopic studies of protonated amines: CH3NH3+ and C2H5NH3+
Author(s)
Schlemmer, Stephan
Contributor(s)
Asvany, Oskar
Brünken, Sandra
Töpfer, Matthias
Schmid, Philipp C.
Thorwirth, Sven
Issue Date
2019-06-19
Keyword(s)
Ions
Date of Ingest
2019-07-15T22:17:07Z
2020-01-25T19:31:30Z
Abstract
Mid-infrared spectra of protonated methylamine, CH$_3$NH$_3^+$, and ethylamine, C$_2$H$_5$NH$_3^+$, have been recorded using the FELion ion trap
connected to the Free Electron Laser for Infrared eXperiments (FELIX; Radboud University, Nijmegen, The Netherlands)
employing infrared photodissociation of the corresponding neon-clusters.
In addition, the pure rotational spectrum of CH$_3$NH$_3^+$ has been observed for the first time. Rotational transitions were observed
in the frequency region between 80 and 240\,GHz in
the Coltrap apparatus using the method of state-selective He-attachment.
In contrast to methylamine which features a complex CH$_3$-internal-rotation/NH$_2$-inversion spectrum,
its protonated variant CH$_3$NH$_3^+$ exhibits the spectrum of a simple symmetric rotor
in its ground vibrational state.
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1344321.pptx
3663.pdf
