Relationship between solvatochromic solvent polarity and various thermodynamic and kinetic data in mixed solvent systems

1990 ◽  
Vol 86 (2) ◽  
pp. 287 ◽  
Author(s):  
J. Graham Dawber
Keyword(s):  
Kinetic Data ◽  
Mixed Solvent ◽  
Solvent Polarity ◽  
Solvent Systems

scholarly journals Prediction of Solvatochromic Polarity Parameters for Aqueous Mixed-Solvent Systems

2020 ◽  
Vol 10 (23) ◽  
pp. 8480
Author(s):  
Alif Duereh ◽  
Amata Anantpinijwatna ◽  
Panon Latcharote
Keyword(s):  
Predictive Model ◽  
Mixed Solvent ◽  
Solvent Polarity ◽  
Aqueous Mixtures ◽  
Hydrogen Bond Donor ◽  
Ideal Model ◽  
Solvent Systems ◽  
Relationship Of ◽  
Electronic Transition Energy ◽  
Polarity Parameters

Solvent polarity is important data being used in solvent selections for preliminary engineering design of chemical processes. In this work, a predictive model is proposed for estimating the solvatochromic polarity of electronic transition energy (ET) of Reichardt indicator for aqueous mixtures. To validate the model, the ET values of eighteen aqueous mixtures collected from the literature were used. The predictive model provided a good estimation of ET values with an overall deviation of 2.1%, compared with an ideal model (5.1%) from the mole fraction average. The linear relationship of the contribution factor of hydrogen bond donor interactions (CFHBD) in the predictive model with Kamlet–Taft acidity was newly proposed in order to extend the model for other aqueous mixtures. The predictive model is applicable to many aqueous mixtures and simply requires three properties of pure components as: (i) ET values, (ii) gas-phase dipole moment and (iii) Kamlet–Taft acidity.

scholarly journals Natural product mixture analysis by matrix-assisted DOSY using Brij surfactants in mixed solvents

RSC Advances ◽  
2014 ◽  
Vol 4 (79) ◽  
pp. 42029-42034 ◽  
Author(s):  
Mariano G. S. Vieira ◽  
Nilce V. Gramosa ◽  
Nágila M. P. S. Ricardo ◽  
Gareth A. Morris ◽  
Ralph W. Adams ◽  
...  
Keyword(s):  
Natural Product ◽  
Mixed Solvent ◽  
Mixed Solvents ◽  
Mixture Analysis ◽  
Surfactant Micelles ◽  
Product Mixture ◽  
Solvent Systems ◽  
Nmr Signals

Brij surfactant micelles in mixed solvent systems aid resolution of natural product NMR signals in diffusion-ordered spectroscopy.

scholarly journals A review on conductometric studies of electrolytes in mixed solvent systems to understand ion-ion and ion-solvent interactions

2020 ◽  
Vol 10 (3) ◽  
pp. 5355-5360
Keyword(s):  
Mixed Solvent ◽  
Mixed Solvents ◽  
Chemical Properties ◽  
Electrolyte Solutions ◽  
Molar Conductance ◽  
Extensive Literature ◽  
Solvent Interactions ◽  
Physico Chemical ◽  
Wide Range ◽  
Solvent Systems

The study of ion- solvent interaction is of much importance to investigate the nature of different solutions. Measurement of electrical conductivity and evaluation of physico-chemical properties, such as molar conductance, limiting molar conductance, ion-pair association, Walden product etc. shade light on different intermolecular interactions present in electrolyte solutions. Solvation properties can be varied by mixing two or more solvents. An extensive literature survey on conductometric studies has been carried out on different electrolytes dissolved in a wide range of mixed solvent systems. The reported results show that strong solute-solute, solute-solvent and solvent-solvent interactions are responsible for the physico- chemical behavior of a solution in mixed solvents.

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