D.M. Burland, R.M. Macfarlane
Journal of Luminescence
Single crystal polarized Raman spectra of p-diiodobenzene in the region from 0 to 300 cm-1 are presented for sample temperatures from 2 to 330 K. Eleven of the twelve predicted gerade librational phonons are unambiguously assigned in terms of their space group symmetries. The temperature dependence of the Raman spectra does not show a soft gerade phonon at the nearly second-order phase transition which occurs at 326 K. A significant anharmonicity for molecular motions above the I-I axis is indicated by the observation of overtones and combinations and broadening of these phonons as the temperature is raised from 2 K. Copyright © 1976 American Institute of Physics.
D.M. Burland, R.M. Macfarlane
Journal of Luminescence
D.M. Burland, D.E. Cooper, et al.
Chemical Physics Letters
D.M. Burland, J.E. Rice, et al.
SPIE San Diego 1991
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Optical Science, Engineering and Instrumentation 1995