Abstract
We present a theoretical calculation of the integrated absorption intensities of the ${Q}_{1}{(0)+Q}_{1}(0)$ and ${Q}_{1}{(0)+Q}_{2}(0)$ pure vibrational double transitions in solid parahydrogen which agrees well with recent experimental measurements by Mengel, Winnewisser, and Winnewisser. The infrared activity of these transitions is found to arise from two- and three-body exchange- and dispersion-induced dipole moments.
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