IR/UV Double Resonance Study of the 2‐Phenylallyl Radical and its Pyrolysis Products
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- Isolated 2‐phenylallyl radicals (2‐PA), generated by pyrolysis from a nitrite precursor, have been investigated by IR/UV ion dip spectroscopy using free electron laser radiation. 2‐PA is a resonance‐stabilized radical that is considered to be involved in the formation of polycyclic aromatic hydrocarbons (PAH) in combustion, but also in interstellar space. The radical is identified based on its gas‐phase IR spectrum. Furthermore, a number of bimolecular reaction products are identified, showing that the self‐reaction as well as reactions withIsolated 2‐phenylallyl radicals (2‐PA), generated by pyrolysis from a nitrite precursor, have been investigated by IR/UV ion dip spectroscopy using free electron laser radiation. 2‐PA is a resonance‐stabilized radical that is considered to be involved in the formation of polycyclic aromatic hydrocarbons (PAH) in combustion, but also in interstellar space. The radical is identified based on its gas‐phase IR spectrum. Furthermore, a number of bimolecular reaction products are identified, showing that the self‐reaction as well as reactions with unimolecular decomposition products of 2‐PA form several PAH efficiently. Possible mechanisms are discussed and the chemistry of 2‐PA is compared with the one of the related 2‐methylallyl and phenylpropargyl radicals.…
Autor(en): | Tobias Preitschopf, Floriane Sturm, Iuliia Stroganova, Alexander K. Lemmens, Anouk M. Rijs, Ingo Fischer |
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URN: | urn:nbn:de:bvb:20-opus-312338 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Physikalische und Theoretische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Chemistry – A European Journal |
Erscheinungsjahr: | 2023 |
Band / Jahrgang: | 29 |
Heft / Ausgabe: | 13 |
Aufsatznummer: | e202202943 |
Originalveröffentlichung / Quelle: | Chemistry – A European Journal 2023, 29(13):e202202943. DOI: 10.1002/chem.202202943 |
DOI: | https://doi.org/10.1002/chem.202202943 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Freie Schlagwort(e): | IR spectroscopy; PAH formation; free electron laser; free jet; radical reactions |
Datum der Freischaltung: | 20.06.2023 |
EU-Projektnummer / Contract (GA) number: | 654148 |
OpenAIRE: | OpenAIRE |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |