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Description
Title: | High-resolution Double Resonance Action Spectroscopy In Ion Traps: Vibrational And Rotational Fingerprints Of Ch2nh2+ |
Author(s): | Markus, Charles R. |
Contributor(s): | Schlemmer, Stephan; Asvany, Oskar; Thorwirth, Sven |
Subject(s): | Ions |
Abstract: | Applying various action spectroscopic techniques in a 4~K cryogenic ion trap instrument, protonated methanimine, CH$_2$NH$_2^+$, has been investigated by high-resolution rovibrational and pure rotational spectroscopy for the first time. In total, 39 rovibrational transitions within the fundamental band of the $\nu_2$ symmetric C-H stretch were measured around 3026\,cm$^{-1}$, which were used to predict pure rotational transition frequencies of CH$_2$NH$_2^+$ in the ground vibrational state. Based on these predictions, nine rotational transitions were observed between 109 and 283~GHz using a novel double resonance method. This method consists of rotational excitation followed by vibrational excitation, which is finally detected as a reduction in the number of CH$_2$NH$_2^+$-He complexes formed in the 4~K He bath of the trap. |
Issue Date: | 2021-06-22 |
Publisher: | International Symposium on Molecular Spectroscopy |
Genre: | Conference Paper / Presentation |
Type: | Text |
Language: | English |
URI: | http://hdl.handle.net/2142/111389 |
DOI: | 10.15278/isms.2021.TL04 |
Date Available in IDEALS: | 2021-09-24 2022-01-21 |