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MO: Fachverband Molekülphysik
MO 20: Poster – Molecular Spectroscopy and Dynamics
MO 20.16: Poster
Wednesday, March 12, 2025, 17:00–19:00, Tent
Imaging thermal-energy chemical dynamics of a 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 indole-water molecular complex probed with a time-dependent strong field ionization and ion mass spectrometry [1]. We produce a pure gas-phase indole-water sample using a combination of a cold molecular beam and the electrostatic deflector [2]. Employing a 2.9 µm mid-IR pump to excite the N-H and C-H vibrational modes induced dynamics between the indole and water moieties.[3]. 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 intact 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).
Keywords: thermal-energy chemical dynamics; clustsers; ultrafast moelcular dynamics; imaging