High-resolution spectroscopic studies of transient carbonaceous species

Sven Thorwirth

I. Physikalisches Institut, Universität zu Köln

Carbonaceous molecules are of importance in diverse scientific areas such as astrochemistry, material science, structural chemistry and theoretical chemistry.

Carbon–rich chains in particular are abundant ingredients of molecular clouds and circumstellar shells.

In this talk, recent efforts towards spectroscopic characterization of neutral and

charged carbon-rich chains harboring selected heteroelements will be presented.

For the most part, neutral chains were studied at high spectral resolution using

a combination of laser ablation production and infrared laser spectroscopy. Charged carbon-rich chains were observed using both infrared and millimeter-wave techniques employing Cologne-built 22-pole ion trap.

Experimental studies and spectroscopic analyses were guided and complemented by high-level quantum-chemical calculations performed at the CCSD(T) level of theory.

Lien sur le site web de l'ISMO : http://www.ismo.u-psud.fr/IMG/pdf/seminaire_sven_thorwirth_21_janvier_2020.pdf