The preferential solvation behavior of three solvatochromic indicators (4-Nitroaniline, N, N-dimethyl-4-nitroaniline, and 2,6-diphenyl-4-(2,4,6-tri phenyl pyridinium-1-yl)phenolate in some deep eutectic solvents (DESs) including choline chloride + glycerol (1:2), choline chloride + ethylene glycol (1:2) and choline chloride + lactic acid (1:2), and their mixtures with water was investigated at constant temperature 298.15±0.1 K by using UV–vis absorption measurements. The solvent exchange model was successfully utilized to analyze the spectral shifts of these dyes to make a description of the preferential solvation behavior of the solute in mixed solvents under study. It was found that the solvation shell of the dyes is mainly affected by the solvent-solvent and solvent-solute interactions, especially hydrogen bonding. The preferential solvation parameter shows that in all aqueous mixtures of DES, the order of preferential solvation for the solvatochromic dyes is as DES > (water-DES) complex > water. The contribution of water to the preferential solvation of dyes is low. This is probably due to the great affinity of water molecules for the self-association and the strong interaction between DES and the dyes.
Hosseinpoor, F., & Jabbari, M. (2022). Experimental Study on the Solvation Behavior in Aqueous Choline Chloride-based Deep Eutectic Solutions by Solvatochromic Dyes. Materials Chemistry Horizons, 1(3), 177-187. doi: 10.22128/mch.2022.595.1022
MLA
Farzaneh Hosseinpoor; Morteza Jabbari. "Experimental Study on the Solvation Behavior in Aqueous Choline Chloride-based Deep Eutectic Solutions by Solvatochromic Dyes". Materials Chemistry Horizons, 1, 3, 2022, 177-187. doi: 10.22128/mch.2022.595.1022
HARVARD
Hosseinpoor, F., Jabbari, M. (2022). 'Experimental Study on the Solvation Behavior in Aqueous Choline Chloride-based Deep Eutectic Solutions by Solvatochromic Dyes', Materials Chemistry Horizons, 1(3), pp. 177-187. doi: 10.22128/mch.2022.595.1022
VANCOUVER
Hosseinpoor, F., Jabbari, M. Experimental Study on the Solvation Behavior in Aqueous Choline Chloride-based Deep Eutectic Solutions by Solvatochromic Dyes. Materials Chemistry Horizons, 2022; 1(3): 177-187. doi: 10.22128/mch.2022.595.1022