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Intermolecular potentials for alpha-glycine from Raman and infrared scattering measurements
Abstract:
The frequencies of intermolecular modes in alpha-glycine-d0 and -d5 have been measured at 300 and 85 K by Raman and infrared scattering techniques. These frequencies were analyzed in terms of simple analytic interatomic potentials. Buckingham potentials were assumed for the nonbonded and hydrogen-bond interactions, and Coulomb and screened Coulomb potentials were assumed for the electrostatic interactions. The observed frequencies are well described by the simple model and the parameters of the hydrogen-bond potentials and the molecular charge distribution were determined from the analysis.
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