Delineating Solute−Solvent Interactions in Binary Mixtures of Ionic Liquids in Molecular Solvents and Preferential Solvation Approach

2011 ◽  
Vol 115 (4) ◽  
pp. 711-718 ◽  
Author(s):  
Nageshwar D. Khupse ◽  
Anil Kumar
Keyword(s):  
Ionic Liquids ◽  
Binary Mixtures ◽  
Preferential Solvation ◽  
Solvent Interactions ◽  
Molecular Solvents

Ionic Liquids as Binary Mixtures with Selected Molecular Solvents, Reactivity Characterisation and Molecular-Microscopic Properties

2012 ◽  
pp. 335-362 ◽  
Author(s):  
Pedro M. E. Mancini ◽  
Maria V. Bravo ◽  
Graciela G. Fortunato ◽  
Claudia G. Adam
Keyword(s):  
Ionic Liquids ◽  
Binary Mixtures ◽  
Molecular Solvents

Applications of a preferential–solvation index (PSI) for the comparison of binary mixtures with ionic liquids

2021 ◽  
pp. 117644
Author(s):  
Simone Morales ◽  
Camila Pastenes ◽  
Vanderlei G. Machado ◽  
Marcos C. Rezende
Keyword(s):  
Ionic Liquids ◽  
Binary Mixtures ◽  
Preferential Solvation

Polarity of Some [NR1R2R3R4]+[Tf2N]−Ionic Liquids in Ethanol: Preferential Solvation versus Solvent–Solvent Interactions

2012 ◽  
Vol 57 (10) ◽  
pp. 2702-2709 ◽  
Author(s):  
Maria-Luísa C. J. Moita ◽  
Ângela F. S. Santos ◽  
João F. C. C. Silva ◽  
Isabel M. S. Lampreia
Keyword(s):  
Ionic Liquids ◽  
Preferential Solvation ◽  
Solvent Interactions ◽  
Solvent Solvent

Solvatochromism in some cosolvent mixtures of sulfolane and aliphatic alcohols: a tool to predict preferential solvation

2020 ◽  
Vol 98 (3) ◽  
pp. 134-144 ◽  
Author(s):  
Mohsen Sarijloo ◽  
Morteza Jabbari ◽  
Ali Farajtabar
Keyword(s):  
Binary Mixtures ◽  
Preferential Solvation ◽  
Solvation Shell ◽  
Solvent Exchange ◽  
Solvent Interactions ◽  
Spectral Shifts ◽  
Fraction Distribution ◽  
Solvation Parameters ◽  
Absorption Measurements ◽  
Solvent Solvent

The phenomenon of solvatochromism for three indicator solutes, namely para-nitroaniline, N,N-dimethyl-p-nitroaniline, and the betaine dye 4-(2,4,6-triphenylpyridinium-1-yl)-2,6-diphenylphenolate, was studied at 303.15 ± 0.1 K by means of UV–vis absorption measurements. The spectral shifts of these dyes in different mole fractions (0.0–1.0) of binary mixtures of sulfolane with eight alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, iso-butanol, tert-butanol) were analyzed to investigate preferential solvation of them in terms of both the solute–solvent and the solvent–solvent interactions. A modified theoretical model (solvent exchange model) was successfully employed to calculate preferential solvation parameters and to obtain information into the contribution of intermolecular interactions to the local and bulk mole fraction distribution of solvation species. It was found that the solvation shell of the dyes is mainly affected by the solvent–solvent interactions, and in all binary mixtures, the studied solvation behavior was non-ideal.

Probing solvent–solvent and solute–solvent interactions in surfactant binary mixtures: solvatochromic parameters, preferential solvation, and quantum theory of atoms in molecules analysis

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18515-18524 ◽  
Author(s):  
Mona Kohantorabi ◽  
Mostafa Fakhraee ◽  
Hadi Salari ◽  
Mohammad Reza Gholami
Keyword(s):  
Quantum Theory ◽  
Binary Mixtures ◽  
Organic Solvents ◽  
Preferential Solvation ◽  
Atoms In Molecules ◽  
Solvatochromic Parameters ◽  
Solvent Interactions ◽  
Solvent Solvent

The behaviour of solvatochromic absorbance probes within binary mixtures of TX-100/organic solvents.

scholarly journals Preferential Solvation of 4-Carboxyl-2, 6-Dinitrophenylazohydroxynaphthalenes in Mixed Hydroxylic Solvents

2021 ◽  
Vol 17 (1) ◽  
pp. 1-13
Author(s):  
O.E. Thomas ◽  
O.A. Adegoke ◽  
F.G. Adenmosun ◽  
O.J. Abiodun
Keyword(s):  
Binary Mixtures ◽  
Quantitative Estimation ◽  
Preferential Solvation ◽  
Solvent Polarity ◽  
Solvent Mixture ◽  
Solvent Interactions ◽  
Spectral Shifts ◽  
Synthetic Intermediates ◽  
Alcoholic Mixtures ◽  
Spectral Patterns

Background: The applications of a group of 4-carboxyl-2,6-dintrophenylazohydroxynaphathalenes, AZ-01 to 04, as colourants, chemosensors or synthetic intermediates have been limited by their solubility.Aim: To investigate the effect of solvent mixture composition on the solubility, solution thermodynamics and position of equilibrium processes of the dyes.Method: The UV-visible spectral patterns of the dyes in binary mixtures including Methanol:Water, Ethanol:Water, Methanol:Ethanol, Methanol:Propan-1-ol, Methanol:Propan-2-ol, Propan-1-ol:Water and Propan-2-ol:Water were acquired. The type and quantitative estimation of solute-solvent interactions at play were determined by fitting spectral patterns to solvent parameters using multilinear regression.Results: Preferential solvation was detected by the non-ideality of the plots of E12 as against the mole fractions of co-solvent in all binary mixtures. In pure solvents, the spectral shifts of AZ-01, 03 and 04, which exist predominantly in the hydrazone form, were affected by polarity of solvent milieu while solvent basicity and acidity, in that order, were the significant parameters for AZ-02. In aqueous alcoholic mixtures, solvent polarity was contributory, although to different degrees, to the observed spectral data of the four dyes. However, solvent acidity and basicity were the primary determinants of spectral shifts observed with AZ-04 and AZ-03 respectively. Spectra-structure relationships identified the formation of the charged hydrazone tautomer which requires stabilisation by polar solvent milieu as responsible for the observed trend. In addition, interactions between new aggregated solvent-solvent species and the propionic acid substituent present in AZ-03 contributed to its spectral shifts.Conclusion: The solvatochromic properties of the phenylazonaphthalene series in binary mixtures have been successfully studied.

Sign in / Sign up

Export Citation Format

Share Document