Gas Phase IR Spectra of Hydrogen Functionalised Pentacene

Rijutha Jaganathan*, Zeyuan Tang, Frederik Doktor S. Simonsen, Julianna Palotás, Jos Oomens, Bjørk Hammer, Liv Hornekær

*Corresponding author for this work

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Abstract

We present gas-phase infrared (IR) spectra of protonated dihydropentacene, the hydrogen functionalised form of the linear, catacondensed, polycyclic aromatic hydrocarbon (PAH), pentacene. Experimental IR spectra are obtained by IR multiple-photon dissociation spectroscopy measurements, while density functional theory calculations provide theoretical spectra. The comparison with the gas-phase spectrum of protonated pentacene reveals the effect of H-atom functionalisation on the IR spectra of PAHs thereby enabling the identification of such species in the interstellar medium.

Original languageEnglish
Title of host publicationEuropean Conference on Laboratory Astrophysics ECLA2020 : The Interplay of Dust, Ice, and Gas in Space
EditorsVito Mennella, Christine Joblin
Number of pages6
PublisherSpringer
Publication dateSept 2023
Pages209-214
ISBN (Print)978-3-031-29002-2, 978-3-031-29005-3
ISBN (Electronic)978-3-031-29003-9
DOIs
Publication statusPublished - Sept 2023
EventEuropean Conference on Laboratory Astrophysics, ECLA 2020 - Anacapri, Italy
Duration: 26 Sept 20211 Oct 2021

Conference

ConferenceEuropean Conference on Laboratory Astrophysics, ECLA 2020
Country/TerritoryItaly
CityAnacapri
Period26/09/202101/10/2021
SeriesAstrophysics and Space Science Proceedings
Volume59
ISSN1570-6591

Keywords

  • Astrochemistry
  • Infrared spectroscopy
  • Interstellar medium
  • Laboratory astrophysics
  • Polycyclic aromatic hydrocarbons

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