Production of PAH cations with narrow internal energy distribution using single nanosecond pulsed laser

Vinitha, M. V.; Nair, Arya M.; Kadhane, U.

doi:10.1140/epjd/e2020-10340-0

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…[28] Finally, fluorene has been detected in carbonaceous meteorites. [29] Fluorene fragmentation has been extensively studied in experiments upon bombardment with protons, [4] visible-UV photons, [30][31][32][33][34][35] VUV photons, [36] IR photons [32] and electrons. [37] Hydrogen loss from fluorene cation is often considered as a prototypical system for mass spectrometry based experiments.…”

Section: Fluorene Fragmentationmentioning

confidence: 99%

Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation

Désesquelles,

Domin,

et al. 2023

ChemPhysChem

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The fluorene cation is a frequently studied molecule in the context of fragmentation experiments. This is because of its potential role in interstellar chemistry, notably as a precursor of PAH cages. In this paper, we analyze H, H+, H2 and H+2 losses from the fluorene cation using the SMF (Statistical Molecular Fragmentation) model. We calculate the probabilities of all the 534 possible fragmentation channels as a function of the excitation energy, up to the loss of three hydrogens. Four different types of hydrogen atom pairings (from the same carbon, from the same ring, from different rings and across‐the‐bay) have been tested in order to determine which types contribute to the actual production of hydrogen molecules. The simulated breakdown curves are in very good agreement with different experimental results when same ring pairing is taken into account. It was possible to deduce from the model the locations of the emitted H, H+, H2 and H+2 species.

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Section: Fluorene Fragmentationmentioning

confidence: 99%

Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation

Désesquelles,

Domin,

et al. 2023

ChemPhysChem

View full text Add to dashboard Cite

show abstract

Understanding dehydrogenation sequence in fluorene+ by multiphoton ionisation-excitation processes

Vinitha

Nair

Ramanathan

et al. 2022

International Journal of Mass Spectrometry

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Production of PAH cations with narrow internal energy distribution using single nanosecond pulsed laser

Cited by 2 publications

References 30 publications

Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation

Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation

Understanding dehydrogenation sequence in fluorene+ by multiphoton ionisation-excitation processes

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Production of PAH cations with narrow internal energy distribution using single nanosecond pulsed laser

Cited by 2 publications

References 30 publications

Competition between Loss of H2 versus H+H in the Fragmentation of the Fluorene Cation

Competition between Loss of H2 versus H+H in the Fragmentation of the Fluorene Cation

Understanding dehydrogenation sequence in fluorene+ by multiphoton ionisation-excitation processes

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Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation

Competition between Loss of H₂ versus H+H in the Fragmentation of the Fluorene Cation