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Proceedings Paper

Far-Infrared (FIR) Fourier Spectroscopic Studies Of Molecular Motion Of Polar Molecules In Solid Inert Gas Matrices
Author(s): D. Leutloff; R. Wittenbeck; E. Knozinger
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Paper Abstract

Polar molecules (such as acetonitrile, cyanoacetylene, acetone and nitromethane) imbedded in solid inert gas matrices give rise to different types of IR absorption bands in a spectral range where intramolecular vibrations may be excluded, i.e. below 150 cm-1. Phonon bands of Ar, Kr and Xe are activated in the range below 72 cm-1. Below 90 cm-1 translational ("rattling") and librational modes of monomer molecules relative to the cage of inert gas atoms were observed. Between 80 and 130 cm-1 the IR active intermolecular vibrations of antiparallel dimers appear. - Owing to the low energy throughput typical for the spectral range below 100 cm-1 these studies had to be carried out using a Fourier spectrophotometer and not a dispersive system.

Paper Details

Date Published: 29 October 1981
PDF: 4 pages
Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); doi: 10.1117/12.932109
Show Author Affiliations
D. Leutloff, Universitat Siegen (West Germany)
R. Wittenbeck, Universitat Siegen (West Germany)
E. Knozinger, Universitat Siegen (West Germany)


Published in SPIE Proceedings Vol. 0289:
1981 Intl Conf on Fourier Transform Infrared Spectroscopy
Hajime Sakai, Editor(s)

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