Berlin 2014 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 15: Experimental Techniques 3

MO 15.3: Vortrag

Donnerstag, 20. März 2014, 11:00–11:15, BEBEL SR144

Prediction of Infra-Red spectra of organic liquids within the framework of the cluster model for a substance — Gennady Melnikov¹, •Vyacheslav Verveyko², Eugene Postnikov², and Marina Verveyko² — ¹South West State University — ²Kursk State University

The distribution function of clusters on particles number is proposed within the frame of the cluster model of a fluid condensed state. The estimations of the most probable, average and root-mean-square number of particles in clusters are obtained using the proposed cluster distribution for simple and organic liquids as a function of the thermodynamic parameters.

The relation for the prediction of frequencies in the infra-red (IR) spectrum of liquids is connected with the presence of rotational and oscillatory motions in clusters structure accordingly to the effective field theory. Verification of the proposed model has been evaluated for inert gases, nitrogen, oxygen, hydrocarbons and water.

The comparison of the calculated results with the experimental data confirms a relevance of the proposed model for the prediction of a number of particles, which form clusters and frequencies of the IR-spectra for liquids.

G.A. Melnikov, V.N. Verveyko et al. Int. J. Therm. 32 (2011), 901.

G.A. Melnikov, V.N. Verveyko et al. High Temperature. 50 (2012), 214.