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Erlangen 2022 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 16: Ions

MO 16.4: Vortrag

Donnerstag, 17. März 2022, 11:30–11:45, MO-H5

Aromaticity and structure variation from cationic cyclopropenyl by varying the number of hydrogen atoms — •Simon Reinwardt1, Patrick Cieslik1, Alexander Perry-Sassmannshausen2, Ticia Buhr2, Alfred Müller2, Stefan Schippers2, Florian Trinter3,4, and Michael Martins11Universität Hamburg, Hamburg, Germany — 2Justus-Liebig-Universität Gießen, Gießen, Germany — 3Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany — 4Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany

Small carbon systems play an important role in the ion chemistry in the interstellar medium [1] and planetary atmospheres [2]. Soft X-ray spectroscopy enables the analysis of these small structures as well as their aromaticity [3]. This allows a comprehensive understanding of the chemical bonding of these hydrocarbon cations and the transition from rings to chains. The smallest aromatic ion, the cyclopropenyl cation (C3H3 +), is an ideal system for studying the aromaticity in chemical bonds on a fundamental level. Through the production in an ion source and a subsequent mass analysis, the structure and the aromaticity can be selected by controlling the number of attached hydrogen atoms. We present new results on these systems that we have measured on the photon ion spectrometer (PIPE) [4] at PETRA III in Hamburg.

[1] D. Smith et al., Chem. Rev., 92 (1992).

[2] C. A. Nixon et al.,, A. J., 160 205 (2020).

[3] C. Kolczewski et al., J.Chem.Phys., 124 034302 (2006).

[4] S. Schippers et al., X-Ray Spectrometry, 49 11 (2020).

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