Thermal Electric Polarization of Molecules

Abstract

Abstract The problem of molecular thermal ( P q ) polarization estimation in the substances with different forms of aggregation and using different experimental techniques is discussed. It is shown on the base of numerous experimental data analysis that P q includes both rotational ( P rot ) and orientational ( P or ) components, which may be commensurable in magnitude in gases and gasiform condensed media. The principle of equal distribution of molecules' thermal polarization over their kinetic degrees of freedom is being satisfied, so P rot term should not be neglected. The neglect of this fact on estimation of the molecular dipole moments using the first method of Debye results in √(5/3) or √(4/3) times overestimated dipole moment values.

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