Rovibrational Spectroscopy Of The Ch⁺-he And Ch⁺-he₄ Complexes

Salomon, Thomas

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https://hdl.handle.net/2142/111283 Copy

Description

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

Issue Date

2021-06-24

Keyword(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.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111283

DOI

10.15278/isms.2021.RM07

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