# FAR INFRARED VIBRATION-ROTATION-TUNNELING SPECTROSCOPY AND THE INTERMOLECULAR POTENTIAL ENERGY SURFACE OF $Ar-NH_{3}$

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/18246

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 Title: FAR INFRARED VIBRATION-ROTATION-TUNNELING SPECTROSCOPY AND THE INTERMOLECULAR POTENTIAL ENERGY SURFACE OF $Ar-NH_{3}$ Creators: Schmuttenmaer, C. A.; Cohen, R. C.; Saykally, R. J. Issue Date: 1990 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. URI: http://hdl.handle.net/1811/18246 Other Identifiers: 1990-TA-6