Universität zu Köln

Salomon, Thomas, Domenech, Jose L., Schmid, Philipp C., Michael, Ernest A., Schlemmer, Stephan and Asvany, Oskar (2021). Rovibrational spectroscopy of the CH+-He and CH+-He-4 complexes. J. Mol. Spectrosc., 377. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1096-083X

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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 cm(-1). The spectrum of CH+-He exhibits perpendicular transitions of a near prolate top with a band origin at 2745.9 cm(-1), 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. (C) 2021 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Salomon, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Domenech, Jose L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmid, Philipp C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Michael, Ernest A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schlemmer, Stephan UNSPECIFIED UNSPECIFIED UNSPECIFIED Asvany, Oskar UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-583899
DOI:	10.1016/j.jms.2021.111421
Journal or Publication Title:	J. Mol. Spectrosc.
Volume:	377
Date:	2021
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1096-083X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INFRARED PREDISSOCIATION SPECTRA; TRANSITIONS; (CH+)-C-13; NU(1); IONS; ATOM; NE Multiple languages Physics, Atomic, Molecular & Chemical; Spectroscopy Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58389