Study of low-frequency polarized spectra of a mixed para-dibromobenzene-para-bromochlorobenzene crystal |
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Authors: | V F Shabanov M A Korshunov |
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Institution: | (1) Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia |
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Abstract: | Polarization studies of low-frequency Raman spectra of a mixed (1: 1) para-dibromobenzene-para-bromochlorobenzene crystal are performed. The spectrum of the mixed crystal is similar to the spectra of its components and also exhibits a number of additional low-intensity lines. The experimental results are interpreted using calculations of mixed crystals by the methods of atom-atom potentials and of Dean. It is found that the experimental results better agree with calculations when the disordered distribution of para-bromochlorobenzene molecules over para-positions is taken into account |
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