Evidence of cluster translational vibrational dynamics in the low-frequency IR spectra of molecular liquids

摘要

The features of the physicochemical mechanisms that cause absorption hands related to cluster translational vibrational dynamics to he formed in the low-frequency IR spectra of molecular liquids are analyzed in terms of the concepts of the cluster-continuum approximation of the method of thermodynamic functionals of generalized internal coordinates. Based oil the harmonic oscillator model, a new relationship is obtained that relates the effective Structure parameter of the translational intermolecular vibrations in liquids to the corresponding vibrational frequencies. (c) 2005 Optical Society of America.