Formation of cluster systems in condensed matters and IR spectra of liquids

摘要

Modern approaches to the interpretation of IR spectra of polyatomic liquids are based on cluster models of the structure of matter. First of all it concerns the far infrared region of the spectrum (20-300 cm~(-1)) where rotationally libration motions in the structure of clusters are found. This work is a continuation of research conducted by the authors earlier [G. Melnikov at al. 2015 IOP Conf. Ser.: Mater. Sci. Eng. 81 p 012032]. The authors have adopted a model in which the appearance of spectral bands is explained by to libration oscillations vibrations of dimers with different configurations in the structure of clusters.