FAR-INFRARED SPECTRA OF HCl - RARE GAS VAN DER WAALS MOLECULES
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Date
1988
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Ohio State University
Abstract
We have recorded spectra of the van der Waals molecules HCI-Ar and HCI-Xe in the farinfrared $(20-120 cm^{-1})$ using a Bomem spectrometer and a 20 m absorption path at low temperatures. This work extends to considerably higher resolution the earlier studies of Boom and van der Elsken on the same systems. Spectra of HCI-Ar show numerous partially resolved features in the $20-40 cm^{-1}$ region, and it is interesting to speculate exactly how these relate to the now extensively studied bands of this species as observed at very low temperatures in supersonic expansions by other workers. HCI-Xe shows especially strong and detailed spectra in the $40-60 cm^{-1}$ region, where it almost appears that we resolve individual rotational lines. However, It is not clear whether the present spectra can be properly understood without significant assistance from theory or from other experiments.
Description
$^{1}$ E.W. Boom and J. van der Elsken, J. Chem. Phys. 73, 15 (1980).
Author Institution: Herzberg Institute of Astrophysics, National Research Council of Canada
Author Institution: Herzberg Institute of Astrophysics, National Research Council of Canada