Isotope invariant fitting of GeO and GeS and the 73Ge quadrupole moment derived from spectroscopy and quantum chemical calculations

Thorwirth, Sven

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https://hdl.handle.net/2142/104486 Copy

Description

Title

Isotope invariant fitting of GeO and GeS and the 73Ge quadrupole moment derived from spectroscopy and quantum chemical calculations

Author(s)

Thorwirth, Sven

Contributor(s)

• McCarthy, Michael C.
• Schlemmer, Stephan
• Puzzarini, Cristina
• Gauss, Jürgen
• Stopkowicz, Stella
• Engel, Franziska
• Kreuter, Florian
• McGuire, Brett A.
• Martin-Drumel, Marie-Aline
• Lee, Kelvin

Issue Date

2019-06-18

Keyword(s)

Small molecules

Abstract

Diatomic germanium oxide, GeO, and germanium sulfide, GeS, have been studied by Fourier transform microwave spectroscopy using laser ablation from a germanium target rod in the presence of H$_2$S or O$_2$ diluted in neon. Extensive isotopic spectroscopy has been performed; measurements include the ground vibrational state as well as states exceeding $v=10$ for some species. Ground state rotational spectra of several GeS isotopologs have also been studied around 300\,GHz through a DC discharge of GeCl$_4$ and H$_2$S in a free-space absorption cell. A global isotope invariant fit has been performed combining all previously published and new high-resolution spectroscopic data. From the analysis of the $^{73}$Ge data combined with highly accurate quantum chemical values for the germanium electric-field gradient, a revised $^{73}$Ge quadrupole moment has been derived.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104486

DOI

https://doi.org/10.15278/isms.2019.TI04

Copyright and License Information

Copyright 2019 Sven Thorwirth

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