Abstract
Information on the orientational dynamics of the N2O molecule in inert liquid solvents (SF6 and CCl4) are deduced from the temperature study of the profiles of the v 1 and v 3 bands, simultaneously active in infrared absorption and Raman diffusion. The correlation time of the angular momentum τJ is determined from the experimental correlation times τ1R and τ2R with the aid of the Gordon and hydrodynamic rotational models. Comparative values are obtained from Chandler model, provided that the hard sphere diameter of the spherocylindrical molecule N2O is that of the spherical cage which allows its free rotation. Amongst the tested rotational models, the Fauquembergue model agrees closely with the v 3 orientational correlation functions Φ1R and Φ2R , for N2O/CCl4 solutions. In this case, orientational distribution functions deduced from this model are almost the same as those calculated from information theory.
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