Jun 14 – 16, 2023
AlbaNova Main Building
Europe/Stockholm timezone

Single-photon double ionization of reactive intermediate S2

Jun 15, 2023, 5:15 PM
15m
FB42 (AlbaNova Main Building)

FB42

AlbaNova Main Building

Speaker in AMO session Sektionen för atom-, molekyl- och optisk fysik Sektionen för atom-, molekyl- och optisk fysik

Speaker

Emelie Olsson (University of Gothenburg)

Description

Disulfur, S2, is a reactive intermediate known to be important in the atmosphere of Jovian planets. Whereas the single ionization valence photoelectron spectrum of S2 is known from the early work of Dyke and coworkers, revealing its double ionization electron spectrum remained a challenge for a long time. Using time-of-flight multiple electron and ion coincidence techniques, in combination with a helium gas discharge lamp and synchrotron radiation, we investigated the double ionization electron spectrum and fragmentation dynamics of S2. The results obtained are compared with detailed calculations performed with highly correlated ab initio methods, such as CASSCF followed by MRCI for the electronic structure and potential energy curves of S2, and RCCSD(T) for total energies and dissociation limits.

Primary author

Emelie Olsson (University of Gothenburg)

Co-authors

Andreas Hult Roos (ELI Beamlines) John Dyke (University of Southampton) John H.D. Eland (Oxford University) Jonas Andersson (University of Gothenburg) Majdi Hochlaf (Université Gustave Eiffel) Måns Wallner (University of Gothenburg) Raimund Feifel (University of Gothenburg) Richard Squibb (University of Gothenburg) Stefano Stranges (Universitá Sapienza) Tarek Ayari (Université Gustave Eiffel) Veronica Ideböhn (University of Gothenburg)

Presentation materials

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