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H2S ultrafast dissociation probed by energy-selected resonant Auger electron–ion coincidence measurements
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics, Physics V.
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2007 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 127, no 11, 114315- p.Article in journal (Refereed) Published
Abstract [en]

We have studied the ultrafast dissociation of the H2S molecule upon S 2p(3/2)-> 6a(1) inner-shell excitation by combining high-resolution resonant Auger spectroscopy and energy-selected Auger electron-ion coincidence measurements. Auger final states have been correlated to the different fragmentation pathways (S+, HS+, and H2S+ ions). As an original result, we evidence a three-step mechanism to describe the resonant production of S+: the Auger recombination in the HS* fragment is followed for the A (3)Pi and c (1)Pi states by the S++H fragmentation mechanism.

Place, publisher, year, edition, pages
2007. Vol. 127, no 11, 114315- p.
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Physical Sciences
URN: urn:nbn:se:uu:diva-16358DOI: 10.1063/1.2776265ISI: 000249667400030OAI: oai:DiVA.org:uu-16358DiVA: diva2:44129
Available from: 2008-05-19 Created: 2008-05-19 Last updated: 2016-04-26

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