The influence of water impurities on association processes of Rodamin 6G molecules in ethanol solution

The influence of impurities in water on the development of association processes and the structure of the resulting associates of rhodamine 6G molecules is studied in the article. Depending on the quantitative content of water at low temperatures, it is possible for two types of associates to form, in which the molecules are combined either by means of water molecules or by dispersion interaction. It is shown that temperature shifting of the maxima of the long-wave color absorption bands at low water contents is attributable to the variation in the concentration of the water molecules, which have solvate shells of different compositions.