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Optical Engineering

Far Infrared (FIR) Fourier Spectroscopic Studies Of Molecular Motion Of Polar Molecules In Solid Inert Gas Matrices
Author(s): E. Knozinger; R. Wittenbeck; D. Leutloff
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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 cm-1 and 130 cm-1 the IR active intermolecular vibrations of antiparallel dimers appear.

Paper Details

Date Published: 1 June 1982
PDF: 4 pages
Opt. Eng. 21(3) 213553 doi: 10.1117/12.7972945
Published in: Optical Engineering Volume 21, Issue 3
Show Author Affiliations
E. Knozinger, Universitat Siegen (West Germany)
R. Wittenbeck, Universitat Siegen (West Germany)
D. Leutloff, Universitat Siegen (West Germany)


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