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 Title: Vibrational and rotational spectroscopy of CD2H+ Author(s): Asvany, Oskar Contributor(s): Schlemmer, Stephan; Brünken, Sandra; Jusko, Pavol Subject(s): Spectroscopy in Traps Abstract: The lowest rotational levels ($J$=0-5) of the CD$_2$H$^+$ ground state have been probed by high-resolution rovibrational and pure rotational spectroscopy in a cryogenic 22-pole ion trap. For this, the $\nu_1$ rovibrational band has been revisited\footnote{M.-F. Jagod et al, J. Molec. Spectrosc. 153, 666, 1992}, detecting 107 transitions, among which 35 are new. The use of a frequency comb system allowed to measure the rovibrational transitions with high precision and accuracy, typically better than 1~MHz. The high precision has been confirmed by comparing combination differences in the ground and vibrationally excited state. For the ground state, this allowed for equally precise predictions of pure rotational transitions, 24 of which have been measured directly by a novel IR - mm-wave double resonance method\footnote{S. G\"artner et al, J. Phys. Chem. A 117, 9975, 2013}. Issue Date: 2016-06-22 Publisher: International Symposium on Molecular Spectroscopy Genre: Conference Paper / Presentation Type: Text Language: En URI: http://hdl.handle.net/2142/91109 Rights Information: Copyright 2016 by the authors Date Available in IDEALS: 2017-01-26
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