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Ion pair dissociation: Spectroscopy and dynamics

TitleIon pair dissociation: Spectroscopy and dynamics
Publication TypeJournal Article
Year of Publication2006
AuthorsSuits, AG, Hepburn, JW
JournalAnnual Review of Physical Chemistry
Volume57
Pagination431-465
Type of ArticleReview
ISBN Number0066-426X
Keywordscation, ENERGY, HIGH-RESOLUTION, ion imaging, IONIZATION, METHYL, MOLECULAR-OXYGEN, NEGATIVE-IONS, PHOTODISSOCIATION DYNAMICS, PHOTOELECTRON-SPECTROSCOPY, PHOTOIONIZATION, superexcited states, TIPPS, VACUUM-ULTRAVIOLET, velocity map imaging, VUV, ZEKE
Abstract

Ion pair dissociation processes may be studied Using coherent vacuum Ultraviolet laser sources in a manner entirely analogous to photoelectron spectroscopy, albeit with the anion playing the role of a heavy electron. If the excitation energy is above the dissociation energy and the kinetic energy of the fragment is measured Using ion imaging. this approach is termed ion pair imaging spectroscopy (IPIS) and is related to conventional photoelectron spectroscopy. If the excitation energy is just below the dissociation energy and pulsed-field dissociation is employed, this approach is analogous to mass analyzed threshold ionization (MATI) spectroscopy and is termed threshold ion pair production spectroscopy (TIPPS). These approaches provide a novel means of investigating ion thermochemistry and spectroscopy and superexcited state decay dynamics at high resolution.

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