Freiburg 2024 – scientific programme
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MO: Fachverband Molekülphysik
MO 20: Theoretical Molecular Physics
MO 20.8: Talk
Thursday, March 14, 2024, 16:15–16:30, HS 3042
Gas-phase sugar synthesis: The formation of protonated glycolaldehyde — •Weiqi Wang1, Hunarpreet Kaur2, Sandra Brünken2, and Jesús Pérez Ríos3,4 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany — 2FELIX Laboratory, Faculty of Science, Radboud University, Toernooiveld 7c, 6525 ED Nijmegen, The Netherlands. — 3Department of Physics and Astronomy, Stony Brook University, Stony Brook 11794, New York, USA — 4Institute for Advanced Computational Science, Stony Brook University, Stony Brook 11794-3800, New York, USA
The investigation into the origins and processes of prebiotic synthesis in our universe is pivotal to unraveling the mystery of life’s beginnings. Currently, the understanding of the chemical pathways leading to complexity is incomplete and mostly experiential.
A crucial initial step in understanding prebiotic synthesis involves exploring pathways that give rise to simple sugars. This study delves into the intricate reaction networks governing the formation of protonated glycolaldehyde, a key component in sugar synthesis. Through the ab initio molecular dynamics method, we systematically explore the entire relevant phase space. To identify the species observed in infrared (IR) experiments, we calculate IR spectra from simulations at finite ensemble temperatures or under specific kinetic temperature conditions. Furthermore, we determine the thermodynamic conditions within the experimental chamber.