High Resolution Interferometric Infrared Spectroscopy of CO2 and CH4 Vapour at Low Temperatures Near 10 K: Collisional Cooling in Supersonic Jets and Nuclear Spin Symmetry Conservation

Authors

  • Hans-Rolf Dübal Laboratorium für Physikalische Chemie der Eidgenössischen Technischen Hochschule Zürich, ETH-Zentrum, CH-8092 Zürich
  • Martin Quack Laboratorium für Physikalische Chemie der Eidgenössischen Technischen Hochschule Zürich, ETH-Zentrum, CH-8092 Zürich
  • Ulrich Schmitt Laboratorium für Physikalische Chemie der Eidgenössischen Technischen Hochschule Zürich, ETH-Zentrum, CH-8092 Zürich

DOI:

https://doi.org/10.2533/chimia.1984.438

Abstract

Infrared absorption spectra of gaseous CO2 near 2350 cm-1 and CH4 near 3030 cm-1 were obtained with apodized resolutions up to 0.006 cm-1 in a supersonic jet-FTIR spectrometer system. Effective rotational temperatures near 10 K were obtained. The evidence for nuclear spin symmetry conservation in the supersonic jet cooling of methane is discussed.

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Published

1984-12-31

Issue

Vol. 38 No. 12 (1984): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1984 Hans-Rolf Dübal

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
H.-R. Dübal, M. Quack, U. Schmitt, Chimia 1984, 38, 438, DOI: 10.2533/chimia.1984.438.