Dahlmann, Franziska, Lochmann, Christine, Marimuthu, Aravindh N., Lara-Moreno, Miguel, Stoecklin, Thierry, Halvick, Philippe ORCID: 0000-0002-9290-0553, Raoult, Maurice, Dulieu, Olivier, Wild, Robert ORCID: 0000-0002-4800-5172, Schlemmer, Stephan ORCID: 0000-0002-1421-7281, Bruenken, Sandra and Wester, Roland ORCID: 0000-0001-7935-6066 (2021). Strong ortho/para effects in the vibrational spectrum of Cl-(H-2). J. Chem. Phys., 155 (24). MELVILLE: AIP Publishing. ISSN 1089-7690

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Abstract

The predissociation spectrum of the Cl-35(-)(H-2) complex is measured between 450 and 800 cm(-1) in a multipole radiofrequency ion trap at different temperatures using the FELIX infrared free electron laser. Above a certain temperature, the removal of the Cl-(p-H-2) para nuclear spin isomer by ligand exchange to the Cl-(o-H-2) ortho isomer is suppressed effectively, thereby making it possible to detect the spectrum of this more weakly bound complex. At trap temperatures of 30.5 and 41.5 K, we detect two vibrational bands of Cl-(p-H-2) at 510(1) and 606(1) cm(-1). Using accurate quantum calculations, these bands are assigned to transitions to the inter-monomer vibrational modes (v(1),v(2)(l2)) = (0, 2(0)) and (1, 2(0)), respectively. (C) 2021 Author(s).

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Dahlmann, FranziskaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lochmann, ChristineUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marimuthu, Aravindh N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lara-Moreno, MiguelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stoecklin, ThierryUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Halvick, PhilippeUNSPECIFIEDorcid.org/0000-0002-9290-0553UNSPECIFIED
Raoult, MauriceUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dulieu, OlivierUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wild, RobertUNSPECIFIEDorcid.org/0000-0002-4800-5172UNSPECIFIED
Schlemmer, StephanUNSPECIFIEDorcid.org/0000-0002-1421-7281UNSPECIFIED
Bruenken, SandraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wester, RolandUNSPECIFIEDorcid.org/0000-0001-7935-6066UNSPECIFIED
URN: urn:nbn:de:hbz:38-591836
DOI: 10.1063/5.0073749
Journal or Publication Title: J. Chem. Phys.
Volume: 155
Number: 24
Date: 2021
Publisher: AIP Publishing
Place of Publication: MELVILLE
ISSN: 1089-7690
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
22-POLE ION-TRAP; INFRARED-SPECTRA; PHOTOELECTRON-SPECTROSCOPY; POTENTIAL-ENERGY; TRANSITION-STATE; ANION COMPLEXES; DYNAMICS; HYDROGENMultiple languages
Chemistry, Physical; Physics, Atomic, Molecular & ChemicalMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/59183

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