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Issue 12, 2015
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SF6 photodetachment near the adiabatic limit

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Abstract

High sensitivity photodetachment cross-section measurements of SF6 are performed near the adiabatic threshold limit. The extraction of adiabatic detachment energy (ADE) from the high sensitivity measurement of the cross-section change as a function of photon energy is discussed. Below the vertical detachment energy a steep 4 orders of magnitude cross-section drop is observed, with cross sections as low as 2 × 10−6 Å2 measured for photon energies below 2 eV. The cross-section is fitted with both the expected spectral shape based on recently calculated Frank–Condon overlaps and a phenomenological threshold function. The resulting 1.7 ± 0.02 eV ADE values are significantly higher than previously recommended experimental ADE values obtained based on kinetics modeling, and possible differences between the experimental approaches are discussed.

Graphical abstract: SF6− photodetachment near the adiabatic limit

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Publication details

The article was received on 03 Nov 2014, accepted on 08 Jan 2015 and first published on 08 Jan 2015


Article type: Paper
DOI: 10.1039/C4CP05068A
Citation: Phys. Chem. Chem. Phys., 2015,17, 7670-7675
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    SF6 photodetachment near the adiabatic limit

    I. Luzon, M. Nagler, O. Heber and D. Strasser, Phys. Chem. Chem. Phys., 2015, 17, 7670
    DOI: 10.1039/C4CP05068A

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