Solvatochromic and preferential solvation of fluorescein in some water-alcoholic mixed solvents

Investigations of absorption and emission spectral data in mixed liquid media. A short review of recent literature

“…Recently, F. Naderi [50] correlate the energy of electronic transition in maximum absorption of the fluorescein in some water-alcoholic (methanol, ethanol, 1-propanol, 2-propanol) mixed liquids with the Kamlet-Taft solvatochromic parameters. In these systems, both α and π* parameters are responsible for the observed spectral changes.…”

Preferential solvation of quercetin in aqueous aprotic solvent mixtures

“…Therefore, the solvatochromic signals convey direct information about the nature of solute-solvent interactions, which can be used to characterize properties and structure of a solvent in the presence of a solute. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] In a pure solvent, the solvent composition is the same for both bulk and solvation shell regions. However, the arrangement of solvent molecules can be varied around the solute, due to solute-solvent interactions, depending on the nature of a solute and solvent.…”

“…Since the characteristics of a solvation shell are defined by its composition and local interactions, the analysis of the dependence of solvatochromism on the composition of solvent mixtures provides means for the quantitative description of the preferential solvation and the estimation of the local composition around the solute. [7][8][9] In this work, the solvatochromism of quercetin, Fig. 1, was analyzed in aqueous binary mixtures of dimethyl sulfoxide, N,N-dimethylformamide and N,N-dimethylacetamide, in order to study the preferential solvation and to estimate the local composition of solvent components in the solvation shell.…”

Effect of various solvents on the absorption spectra of dithizone and DFT calculations

“…When two solvents are mixed, solutesolvent and solvent-solvent interactions become more complex and new solvent properties can be obtained which are not present in single solvents [12]. In a binary mixture, one component of the mixture preferentially interacts with the solute molecule in its vicinity to form additional intermolecular interactions such as hydrogen bonding or dipole-dipole interactions [13,14]. The solute-solvent interactions can be modified by changing the mixture composition in order to understand the role of these interactions in the solvation process [15].…”