University of Illinois Urbana-Champaign

INFRARED ACTION SPECTROSCOPY OF INDENYL AND FLUORENYL ANIONS

Jiménez-Redondo, Miguel

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6784.pdf
RG09_1.pdf

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https://hdl.handle.net/2142/122468

Description

Title
INFRARED ACTION SPECTROSCOPY OF INDENYL AND FLUORENYL ANIONS
Author(s)
Jiménez-Redondo, Miguel
Contributor(s)
  • Brünken, Sandra
  • Caselli, Paola
  • Rap, Daniel
  • Wenzel, Gabi
  • Jusko, Pavol
Issue Date
2023-06-22
Keyword(s)
Mini-symposium: Spectroscopy with Cryogenic Ion Traps
Abstract
Polycyclic aromatic hydrocarbons (PAHs) play an important role in the chemistry of the interstellar medium. The recent unambiguous detection of several comparably small PAHs in the cold interstellar medium through radioastronomical observationsᵃ has rekindled the interest in spectroscopic studies of PAHs consisting of only two or three aromatic rings and their derivatives. In this work, the vibrational spectra of indenyl and fluorenyl anions has been studied by infrared predissociation (IRPD) action spectroscopy using the Free Electron Laser for Infrared eXperiments, FELIX, at Radboud University, in combination with the cryogenic 22 pole ion trap setup FELionᵇ. The range of 650 – 1650 cm−¹ was sampled by measuring the depletion of the signal of the H₂-tagged ion as a function of the laser wavelength. High-level quantum-chemical calculations at the CCSD(T) level of theory have also been performed for the spectroscopic assignment of the detected vibrational bands.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/122468
DOI
https://doi.org/10.15278/isms.2023.6784

Owning Collections

Abstracts & Presentations - 2023 International Symposium on Molecular Spectroscopy PRIMARY