Erlangen 2022 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 18: High-Resolution Spectroscopy

MO 18.1: Hauptvortrag

Donnerstag, 17. März 2022, 14:30–15:00, MO-H5

High-resolution spectroscopic studies of transient carbon-rich species — •Sven Thorwirth, Oskar Asvany, and Stephan Schlemmer — I. Physikalisches Institut, Universität zu Köln

Carbon-rich material is of importance in diverse scientific areas such as material science, structural chemistry, theoretical- and astrochemistry. In space, carbon-rich molecular chains both in their neutral and charged forms are abundant ingredients of molecular clouds and circumstellar shells. In this talk, recent efforts towards spectroscopic characterization of neutral and positively charged carbon-rich species harboring selected heteroelements will be presented. Neutral chains were studied at high spectral resolution using a combination of laser ablation production and infrared laser spectroscopy. Positively charged species were observed as products of electron impact ionization of precursor gases using infrared/millimeter-wave techniques and action spectroscopy in 22-pole ion trap instruments. Spectroscopic analyses were guided and facilitated by high-level quantum-chemical calculations.