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Title:Rovibrational Spectroscopy Of The Ch+-he And Ch+-he4 Complexes
Author(s):Salomon, Thomas
Contributor(s):Asvany, Oskar; Schlemmer, Stephan; Michael, Ernest A; Schmid, Philipp C; Doménech, José Luis
Subject(s):Action spectroscopy (incl. PE, PD, PI, LIR)
Abstract:A cryogenic 22-pole ion trap apparatus is used in combination with a table-top pulsed IR source to probe weakly bound CH$^+$-He and CH$^+$-He$_4$ complexes by predissociation spectroscopy at 4 K. The infrared photodissociation spectra of the C–H stretching vibrations are recorded in the range of 2720–2800~\wn. The spectrum of CH$^+$-He exhibits perpendicular transitions of a near prolate top with a band origin at 2745.9~\wn, and thus confirms it to have a T-shaped structure. For CH$^+$-He$_4$, the C-H stretch along the symmetry axis of this oblate top results in parallel transitions.
Issue Date:2021-06-24
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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