Research & Faculty

Default Header Image

Resonance enhanced multiphoton dissociation of polycyclic aromatic hydrocarbons cations in an RF ion trap

TitleResonance enhanced multiphoton dissociation of polycyclic aromatic hydrocarbons cations in an RF ion trap
Publication TypeJournal Article
Year of Publication2003
AuthorsRolland, D, Specht, AA, Blades, MW, Hepburn, JW
JournalChemical Physics Letters
Volume373
Pagination292-298
Date PublishedMay
Type of ArticleArticle
ISBN Number0009-2614
KeywordsENERGETICS, fragmentation, GAS-PHASE, IONIZATION, IR EMISSION, MASS-SPECTROMETRY, PAHs, PHOTODISSOCIATION, RADICAL CATIONS, SPECTROSCOPY
Abstract

We present a novel method for recording the absorption spectra of cations of non-volatile molecules using resonance enhanced multiphoton dissociation of trapped ions. Ions are produced through a 2-1aser desorption/ionization process in an RF ion trap mass-spectrometer. A third tunable visible laser induces fragmentation of the trapped ions with a yield dependent on the absorption cross-sections of the ions. Using this method we have recorded the visible absorption spectrum of two PAH isomers, phenanthrene and anthracene. (C) 2003 Elsevier Science B.V. All rights reserved.

URL<Go to ISI>://000183016300010