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Issue 5, 2005
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Photoelectron–photofragment coincidence study of OHF: transition state dynamics of the reaction OH + F → O + HF

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Abstract

A photoelectron–photofragment coincidence (PPC) study of the dissociative photodetachment of OHF at a photon energy of 4.80 eV is presented. The correlated electron kinetic energy (eKE) and translational energy release (ET) into the O + HF + e products yield information on the potential energy surface close to the transition state of the neutral reaction OH + F → O + HF. The correlation spectrum shows two different features in the energetically allowed O + HF product channel: (a) diagonal ridges, resulting from direct dissociative photodetachment (DPD) and (b) areas with higher ET in the neutral fragments from nonadiabatic dissociation. The total translational energy spectrum (ETOT = eKE + ET) reveals a vibrationally resolved product state distribution. These results are discussed in the context of recent theoretical studies of the dissociative photodetachment of OHF.

Graphical abstract: Photoelectron–photofragment coincidence study of OHF−: transition state dynamics of the reaction OH + F → O + HF

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Publication details

The article was received on 21 Sep 2004, accepted on 26 Nov 2004 and first published on 06 Jan 2005


Article type: Paper
DOI: 10.1039/B414604B
Phys. Chem. Chem. Phys., 2005,7, 855-860

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    Photoelectron–photofragment coincidence study of OHF: transition state dynamics of the reaction OH + F → O + HF

    H. Deyerl and R. E. Continetti, Phys. Chem. Chem. Phys., 2005, 7, 855
    DOI: 10.1039/B414604B

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