ABSTRACT
This chapter considers the relations between magnetic properties of molecules and their electric characteristics such as optical polarizability, dipole and quadrupole moments. The tensor of molecular polarizability is necessary for interpretation of a number of magnetooptical phenomena, e.g., for the determination of susceptibility anisotropy via magnetic birefringence effects. If molecule is non-polar, and its tensor is described by three different principle parameters, the equation system is unsolvable. In this case, additional information might be obtained by using other methods, e.g. the Cotton-Mouton effect, under the condition, that the magnetic susceptibility data could be found independently. Electric polarizability and magnetic susceptibility describe the ability of molecular electron cloud to deform in the presence of electric and magnetic fields, and are therefore closely related. The Gans-Mrovka-Dorfman model indicates the absence of a direct relation between magnetic and electric anisotropics. Electric field of light wave produces near the inhomogeneities oscillating dipole moments, which becomes sources of secondary electromagnetic waves.
