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Updated: Jun 21, 2026

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
Published on: February 1, 2020
Fourier transform microwave spectra of a "new" isomer of OCS-CO2
Galen Sedo1, Jennifer van Wijngaarden
1Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.
Abstract:
The rotational spectrum of a "new" isomer of OCS-CO(2) has been measured between 5 and 18 GHz using Fourier transform microwave spectroscopy. Both a- and b-type transitions of the parent dimer and the (13)CO(2)-containing isotopologue were fit and the resulting spectroscopic constants confirm that this is the planar O-interior, not-quite-as-parallel isomer that was experimentally observed for the first time in the recent infrared investigation of Dehghany et al. [J. Chem. Phys. 130, 224310 (2009)]. As in the infrared study, the microwave transitions of this isomer appear stronger than those of the previously reported lower energy isomer of OCS-CO(2) when helium is used as the backing gas for the supersonic expansion.
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