ROTATIONAL DIFFUSION IN SOLID ARSINE
Loading...
Date
1977
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Near IR spectra of the $\nu_{2}$ and $\nu_{4}$ bands of solid $AsH_{3}$ and $AsD_{3}$ are reported for the temperature range $13^\circ K$ $-77^\circ K$. These spectra indicate that the arsine molecules are undergoing rotational diffusion in phase II (above $32^\circ K$). The spectral densities have been Fourier transformed to yield the dipole autocorrelation functions. Corrections have been made for the phonon contributions to the autocorrelation functions. The phonon-corrected autocorrelation functions have been calculated from free-rotor memory functions. The significance of this calculation with respect to rotational diffusion in plastic crystals is discussed.
Description
Author Institution: Department of Chemistry, Texas Tech University