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Spectral Characteristics of Aqueous Dispersions Enriched in Oxygen
Spectral Characteristics of Aqueous Dispersions Enriched in Oxygen

Russian Journal of General Chemistry, 2006, Vol. 76, No. 11, pp. 1698–1704. Pleiades Publishing, Inc., 2006. Original Russian Text © O.A. Novruzova, 2006, published in Zhurnal Obshchei Khimii, 2006, Vol. 76, No. 11, pp. 1773–1785.

O. A. Novruzova

Abstract–The IR absorption and reflection spectra of aqueous dispersions consisting of (H2O)n, O2(H2O)n,
and (O2)2(H2O)n clusters (10 ≤n ≤ 50) were calculated by the method of molecular dynamics using a flexible
model of molecules. The frequency distribution of the power scattered by the cluster systems was obtained in
the range 0 ≤ ω≤ 3000 cm-1. The capture of one oxygen molecule by the clusters is accompanied by a decrease
in the absorption of the low-frequency IR radiation and by a peak of the absorption intensity in the
vicinity of ω = 2704 cm-1. This is also accompanied by a decrease in the reflection coefficient throughout the
frequency range and a decrease in the emission power at ω < 1030 and ω > 1700 cm-1. Addition of two
oxygen molecules to the clusters decreases the capability of the dispersions for the absorption, reflection, and
scattering of IR radiation.


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