Universität zu Köln

Toepfer, Matthias, Salomon, Thomas, Kohguchi, Hiroshi ORCID: 0000-0001-9684-1258, Dopfer, Otto, Yamada, Koichi M. T., Schlemmer, Stephan ORCID: 0000-0002-1421-7281 and Asvany, Oskar (2018). Double Resonance Rotational Spectroscopy of Weakly Bound Ionic Complexes: The Case of Floppy CH3+-He. Phys. Rev. Lett., 121 (14). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

A novel rotational spectroscopy method applicable to ions stored in cold traps is presented. In a double resonance scheme, rotational excitation is followed by vibrational excitation into a dissociative resonance. Its general applicability is demonstrated for the CH3+-He complex, which undergoes predissociation through its C-H stretching modes nu(1) and nu(3). High resolution rotational transitions are recorded for this symmetric top, and small unexpected splittings are resolved for K = 1. Advantages and potential future applications of this new approach are discussed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Toepfer, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Salomon, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Kohguchi, Hiroshi UNSPECIFIED orcid.org/0000-0001-9684-1258 UNSPECIFIED Dopfer, Otto UNSPECIFIED UNSPECIFIED UNSPECIFIED Yamada, Koichi M. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schlemmer, Stephan UNSPECIFIED orcid.org/0000-0002-1421-7281 UNSPECIFIED Asvany, Oskar UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-171542
DOI:	10.1103/PhysRevLett.121.143001
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	121
Number:	14
Date:	2018
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics I
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INFRARED PREDISSOCIATION SPECTRA; HIGH-RESOLUTION SPECTROSCOPY; AB-INITIO CALCULATIONS; CLUSTER IONS; PHOTODISSOCIATION SPECTRA; METHYL CATION; 4 K; TRAP; MICROSOLVATION; HYDROGEN Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17154