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Ultrafast ionization and fragmentation dynamics of polycyclic atomatic hydro-carbons by XUV radiation

Abstract:
In the interstellar medium polycyclic aromatic hydrocarbon molecules (PAH) are exposed to strong ionizing radation leading to complex organic photochemistry. We investigated these ultrafast fragmentation reactions after ionization of the PAHs phenanthrene, fluorene and pyrene at a wavelength of 30.3 nm using pump probe spectroscopy at a free electron laser. We observe double ionization and afterwards hydrogen abstraction and acetylene loss with characteristic time scales for the reaction processes below one hundred femtoseconds.
Publication status:
Published
Peer review status:
Reviewed (other)

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Publisher copy:
10.1088/1742-6596/1412/11/112008

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Publisher:
IOP Publishing Publisher's website
Journal:
Journal of Physics: Conference Series Journal website
Volume:
1412
Issue:
11
Article number:
112008
Host title:
Journal of Physics: Conference Series
Publication date:
2020-06-11
Acceptance date:
2019-11-14
DOI:
EISSN:
1742-6596
ISSN:
1742-6588
Language:
English
Keywords:
Pubs id:
1122963
Local pid:
pubs:1122963
Deposit date:
2020-08-17

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