VACUUM ULTRAVIOLET ABSORPTION SPECTRUM OF THE VAN DER WAALS MOLECULE $Xe_{2}$. PART II. GROUND STATE VIBRATIONAL STRUCTURE AND POTENTIAL WELL DEPTH
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Date
1974
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Ohio State University
Abstract
The vacuum ultraviolet absorption spectrum of the van der Waals molecule $Xe_{2}$ has been photographed at high resolution. Ground state vibrational spacings $\Delta G_{v} + 1/2$ with $v = 0 - 9$ have been extracted from the vibronic structure of two transitions. An extrapolation procedure based on an assumed inverse sixth power long-range potential reveals that the ground electronic state of $Xe_{2}$ supports 26 bound vibrational levels. Spectroscopic values for the potential well depth, $195.5 cm^{-1}$, and the zero-point energy, $10.4 cm^{-1}$, are compared to results from recent molecular beam scattering experiments by means of Rydberg-Klein-Rees plots of well depth versus well width.
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Author Institution: Air Force Cambridge Research Laboratories