FAR INFRARED VIBRATION-ROTATION-TUNNELING SPECTROSCOPY AND THE INTERMOLECULAR POTENTIAL ENERGY SURFACE OF $Ar-NH_{3}$
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Date
1990
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Two new far infrared bands of $Ar-NH_{3}$ have been measured that share a common lower state with the band previously measured in our $lab^{1}$. These three bands have all been assigned as transitions originating from the ground $state^{2}$. One has been assigned as the first van der Waals stretching transition. The other two have been assigned as transitions to the levels resulting from the splitting of the js-1, k-0 rotational state of free $NH{3}$ due to the anisotropic potential, as suggested by B.J. $Howard^{3}$. An analysis using a least squares fit to an analytical form for the intermolecular potential has been carried out.
Description
$^{1}$ D.H. Cwo, M.L. Havenith, R.C. Cohen, K.L. Busarow, Y.T. Lee. R.J. Saykal/, Submitted for publication. $^{2}$ D.D. Nelson. Jr.. G.T. Fraser, K.I. Peterson, K. Zhao, W. Klemperer. P.J. Lovas., R.D. Suenram, J. Chem. Phys. 85, 5512 (1986). $^{3}$ J. Howard, Private communication.
Author Institution: Department of Chemistry, University of California, and Materials and Chemical Sciences Division
Author Institution: Department of Chemistry, University of California, and Materials and Chemical Sciences Division