Excited State Assignment and State-Resolved Photoelectron Circular Dichroism in Chalcogen-Substituted Fenchones
Excited electronic states of fenchone, thiofenchone, and selenofenchone are characterized and assigned with different gas-phase spectroscopic methods and ab initio quantum chemical calculations. With an increasing atomic number of the chalcogen, increasing bathochromic (red) shifts are observed, which vary in strength for Rydberg states, valence-excited states, and ionization energies. The spectroscopic insight is used to state-resolve the contributions in multiphoton photoelectron circular dichroism with femtosecond laser pulses. This is shown to be a sensitive observable of molecular chirality in all studied chalcogenofenchones. This work contributes new spectroscopic information, particularly on thiofenchone and selenofenchone. It may open a perspective for future coherent control experiments exploiting resonances in the visible and near-ultraviolet spectral regions.
Authors
- Tonio Rosen (ORCID: https://orcid.org/0009-0008-4525-2777)
- Catmarna Küstner‐Wetekam (ORCID: https://orcid.org/0000-0003-4030-516X)
- Thomas F. Giesen (ORCID: https://orcid.org/0000-0002-2401-0049)
- Arne Senftleben (ORCID: https://orcid.org/0000-0003-0932-9892)
- Lutz Marder (ORCID: https://orcid.org/0000-0001-7293-7589)
- Nicolas Ladda (ORCID: https://orcid.org/0009-0009-7677-9640)
- Hendrike Braun (ORCID: https://orcid.org/0000-0003-3017-6077)
- Simon T. Ranecky (ORCID: https://orcid.org/0009-0001-2071-5930)
- Rudolf Pietschnig (ORCID: https://orcid.org/0000-0003-0551-3633)
- Igor Vidanović
- Sudheendran Vasudevan (ORCID: https://orcid.org/0000-0002-2951-342X)
- Han-gyeol Lee (ORCID: https://orcid.org/0009-0004-1015-588X)
- Manjinder Kour (ORCID: https://orcid.org/0000-0002-8213-8446)
- Steffen M. Giesen (ORCID: https://orcid.org/0000-0001-7853-8511)
- Guido Fuchs (ORCID: https://orcid.org/0000-0002-6935-059X)
- Andreas Hans (ORCID: https://orcid.org/0000-0002-4176-4766)
- Jochen Mikosch (ORCID: https://orcid.org/0000-0003-4754-6927)
- Sagnik Das (ORCID: https://orcid.org/0009-0000-7801-6908)
- Thomas Baumert
- Arno Ehresmann
- Robert Berger
- Tim Schäfer
- Denis Kargin
- Vidana Popkova
Publication Details
- Journal
- Universitätsbibliothek Kassel
- Published
- 2025-11-03
- DOI
- https://doi.org/10.17170/kobra-2026010511761
- Primary Topic
- Laser-Matter Interactions and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00