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MO: Fachverband Molekülphysik
MO 14: Vibrational and Rotational Spectroscopy
MO 14.8: Vortrag
Mittwoch, 11. März 2020, 16:15–16:30, f142
Millimeter Wave Spectrum of Styrene Oxide C8H8O — •Pascal Stahl1, Arenas Benjamin2, Sergio Domingos2, Guido W. Fuchs1, Melanie Schnell2, and Thomas Giesen1 — 1Institute of Physics, University Kassel, Heinrich-Plett Str. 40, 34132 Kassel, Germany — 2Spectroscopy of Molecular Processes, DESY, Notkestraße 85, 22607 Hamburg, Germany
We investigated the astrochemically-relevant, chiral molecule styrene oxide C8H8O and analysed the rotational spectrum of its ground state. Chirped-pulse Fourier-transform microwave and millimeter-wave spectroscopy and frequency modulation absorption spectroscopy was applied to record spectra in the region of 2 GHz to 330 GHz. Spectral analysis produced a set of precise rotational constants and centrifugal distortion constants up to the sextic order. Our accurate predictions of styrene oxide into the (sub-)millimetre range are necessary for radio astronomy searches. In addition, we assigned the spectra of all singly-substituted 13C and the 18O isotopologues, which allowed us to investigate the gas-phase structure of the molecule.