Abstract
Polarization studies of low-frequency Raman spectra of solid solutions of p-dichlorobenzene with p-bromchlorobenzene (50% p-dichlorobenzene) were carried out. Analysis of the lattice vibration spectra of these mixed crystals shows that vacancies can be present in their structure. The presence of vacancies is responsible for the emergence of additional lines, including those in the 70 cm−1 region. The calculation of the diffusion activation energy in a mixed crystal proves that its magnitude is determined by the spatial arrangement of p-bromchlorobenzene molecules in the lattice, their orientation relative to parahalides, and (to a lesser extent) temperature variations.
Similar content being viewed by others
References
Novel Physical Principles of Optical Information Processing, Ed. by S. A. Akhmanov and M. A. Vorontsov (Nauka, Moscow, 1990), p. 399.
H. Gibbs, Optical Bistability: Controlling Light with Light (Academic, New York, 1985; Mir, Moscow, 1988).
V. F. Shabanov and M. A. Korshunov, Fiz. Tverd. Tela (St. Petersburg) 39(9), 1564 (1997) [Phys. Solid State 39, 1393 (1997)].
A. I. Kitaigorodskii, X-ray Diffraction Analysis (GITTL, Moscow, 1950).
V. S. Grechishkin, Nuclear Quadrupole Interactions in Solids (Nauka, Moscow, 1973).
A. I. Kitaigorodskii, Molecular Crystals (Nauka, Moscow, 1971).
P. Dean, in Computational Methods in Solid State Theory (Mir, Moscow, 1975), p. 207.
M. B. Wincke, A. Hadni, and X. Gerbaux, J. Phys. (Paris) 31, 893 (1970).
Author information
Authors and Affiliations
Additional information
__________
Translated from Fizika Tverdogo Tela, Vol. 42, No. 7, 2000, pp. 1240–1242.
Original Russian Text Copyright © 2000 by Shabanov, Korshunov.
Rights and permissions
About this article
Cite this article
Shabanov, V.F., Korshunov, M.A. Mixed crystals of p-dichlorobenzene with p-bromchlorobenzene in the presence of vacancies in the structure. Phys. Solid State 42, 1277–1279 (2000). https://doi.org/10.1134/1.1131376
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/1.1131376