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Issue 7, 2005
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Threshold photoelectron photoion coincidence studies of parallel and sequential dissociation reactions

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Abstract

Recent advances in threshold photoelectron photoion coincidence (TPEPICO) make possible the analysis of several parallel and sequential dissociations of energy selected ions. The use of velocity focusing optics for the simultaneous collection of threshold and energetic electrons not only improves the resolution, but also permits subtraction of coincidences associated with “hot” electrons, thereby yielding TPEPICO data with no contamination from “hot” electrons. The data analysis takes into account the thermal energy distribution of the sample and uses statistical theory rate constants and energy partitioning in dissociation reactions to model the time of flight distributions and the breakdown diagram. Examples include CH2BrCl and P(C2H5)3. Of particular interest is the ability to extract error limits for rate constants and dissociation energies.

Graphical abstract: Threshold photoelectron photoion coincidence studies of parallel and sequential dissociation reactions

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Publication details

The article was received on 08 Feb 2005, accepted on 23 Feb 2005 and first published on 08 Mar 2005


Article type: Review Article
DOI: 10.1039/B502051D
Citation: Phys. Chem. Chem. Phys., 2005,7, 1507-1513
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    Threshold photoelectron photoion coincidence studies of parallel and sequential dissociation reactions

    T. Baer, B. Sztáray, J. P. Kercher, A. F. Lago, A. Bödi, C. Skull and D. Palathinkal, Phys. Chem. Chem. Phys., 2005, 7, 1507
    DOI: 10.1039/B502051D

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