MAGNETOOPTICAL AND LIGHT-SCATTERING EFFECTS IN LIQUID BINARY-SOLUTIONS

The paper presents results of the magnetooptical Faraday and Cotton-Mo uton effects measured for binary solutions of o-bromoanisole in benzen e and p-xylene. These magnetooptical effects can provide information o n molecular interactions in liquids. For very diluted solutions of o-b romoanisole (polar molecule) in benzene or p-xylene (nonpolar molecule s) 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 intera ctions in liquids follows from correlations in the theoretical descrip tion of the Cotton-Mouton, Faraday and light scattering effects. The r esults of the magnetooptical measurements have been used for determina tion of the degree of light depolarization in light scattering process es. The presented method for measurement of light depolarization degre e does not require a direct observation of Rayleigh light scattering. Measurements have been performed in a pulse magnetic field of high int ensity (B = 20 T) and laser beam: lambda = 488 nm.