Infrared spectra of organic liquids and cluster model of substance Vyacheslav N. Verveyko, Marina V. Verveyko and Gennady A. Melnikov Eur. Phys. J. D, 70 3 (2016) 47 Published online: 08 March 2016 DOI: 10.1140/epjd/e2016-60643-6