Photoionization Efficiencies of Five Polycyclic Aromatic Hydrocarbons

We have measured photoionization-efficiency curves for pyrene, fluoranthene, chrysene, perylene, and coronene in the photon energy range of 7.5–10.2 eV and derived their photoionization cross-section curves in this energy range. All measurements were performed using tunable vacuum ultraviolet (VUV)...

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Veröffentlicht in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2017-06, Vol.121 (23), p.4447-4454
Hauptverfasser: Johansson, K. Olof, Campbell, Matthew F, Elvati, Paolo, Schrader, Paul E, Zádor, Judit, Richards-Henderson, Nicole K, Wilson, Kevin R, Violi, Angela, Michelsen, Hope A
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container_end_page 4454
container_issue 23
container_start_page 4447
container_title The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory
container_volume 121
creator Johansson, K. Olof
Campbell, Matthew F
Elvati, Paolo
Schrader, Paul E
Zádor, Judit
Richards-Henderson, Nicole K
Wilson, Kevin R
Violi, Angela
Michelsen, Hope A
description We have measured photoionization-efficiency curves for pyrene, fluoranthene, chrysene, perylene, and coronene in the photon energy range of 7.5–10.2 eV and derived their photoionization cross-section curves in this energy range. All measurements were performed using tunable vacuum ultraviolet (VUV) radiation generated at the Advanced Light Source synchrotron at Lawrence Berkeley National Laboratory. The VUV radiation was used for photoionization, and detection was performed using a time-of-flight mass spectrometer. We measured the photoionization efficiency of 2,5-dimethylfuran simultaneously with those of pyrene, fluoranthene, chrysene, perylene, and coronene to obtain references of the photon flux during each measurement from the known photoionization cross-section curve of 2,5-dimethylfuran.
doi_str_mv 10.1021/acs.jpca.7b02991
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The VUV radiation was used for photoionization, and detection was performed using a time-of-flight mass spectrometer. We measured the photoionization efficiency of 2,5-dimethylfuran simultaneously with those of pyrene, fluoranthene, chrysene, perylene, and coronene to obtain references of the photon flux during each measurement from the known photoionization cross-section curve of 2,5-dimethylfuran.</description><identifier>ISSN: 1089-5639</identifier><identifier>EISSN: 1520-5215</identifier><identifier>DOI: 10.1021/acs.jpca.7b02991</identifier><identifier>PMID: 28521096</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY</subject><ispartof>The journal of physical chemistry. 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title Photoionization Efficiencies of Five Polycyclic Aromatic Hydrocarbons
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