Freiburg 2024 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 16: Ultrafast Dynamics I
MO 16.1: Vortrag
Mittwoch, 13. März 2024, 14:30–14:45, HS 3044
Imaging thermal-energy chemical dynamics of solvated (bio)molecular complex system — •Mukhtar Singh1, 2, 3, Matthew Scott Robinson1,2,3, Hubertus Bromberger1,2, Sebastian Trippel1,2, and Jochen Küpper1,2,3 — 1Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg — 2Center for Ultrafast Imaging, Universität Hamburg — 3Department of Physics, Universität Hamburg
We present the imaging of ultrafast thermal-energy-induced chemical dynamics of a micro-solvated (bio) molecular complex probed with a time-dependent strong field ionization, and ion mass spectroscopy [1]. We produce a pure gas-phase indole-water sample using a combination of a cold molecular beam and the electrostatic deflector [2]. By employing a mid-IR pump to excite a single vibrational mode [3], the resulting thermal-energy chemical dynamics between the indole and water moieties were investigated. The dissociation of the micro-solvated system was monitored using strong-field multi-photon ionization by 1.3 µm wavelength light from a femtosecond pulsed laser, tracking the time-dependent ion signals of the indole-water cluster as well as the individual indole and water ionic products.
[1] J Onvlee, et al., Nat Commun. 13, 7462 (2022)
[2] S. Trippel, et al., Rev. Sci. Instrum. 89, 096110 (2018)
[3] M.S. Robinson, et al., Phys. Chem. Chem. Phys. (2023)