Abstract

The paper presents results of the magnetooptical Faraday and Cotton-Mouton effects measured for binary solutions of o-bromoanisole in benzene and p-xylene. These magnetooptical effects can provide information on molecular interactions in liquids. For very diluted solutions of o-bromoanisole (polar molecule) in benzene or p-xylene (nonpolar molecules) the aggregation processes of o-bromoanisole with nonpolar molecules are unambiguously evidenced by the Faraday and Cotton-Mouton effects. The choice of the magnetooptical method for studying molecular interactions in liquids follows from correlations in the theoretical description of the Cotton-Mouton, Faraday and light scattering effects. The results of the magnetooptical measurements have been used for determination of the degree of light depolarization in light scattering processes. The presented method for measurement of light depolarization degree does not require a direct observation of Rayleigh light scattering. Measurements have been performed in a pulse magnetic field of high intensity ( B = 20 T) and laser beam: λ = 488 nm.

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