Solute–solvent and solvent–solvent interactions in binary solvent mixtures. Part 1. A comparison of several preferential solvation models for describing ET(30) polarity of bipolar hydrogen bond acceptor-cosolvent mixtures
- 1 January 1995
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 8,p. 1607-1615
- https://doi.org/10.1039/p29950001607
Abstract
The influence of solute–solvent and solvent–solvent interactions on the preferential solvation of solvatochromic indicators in binary solvent mixtures of Bipolar hydrogen bond acceptors has been studied. Several equations based on solvent exchange models that relate the transition energy of the Dimroth–Reichardt ET(30) indicator with the solvent composition are derived and compared. The models tested assume that the two solvents mixed interact to form a common structure with an ET(30) value not always intermediate between those of the solvents mixed. The solvatochromic indicator can be preferentially solvated by any of the solvents mixed or by the mixed solvent obtained. The parameters obtained explain the strong synergism observed for some of the mixtures with strong hydrogen bond donors (alcohols and chloroform).Keywords
This publication has 23 references indexed in Scilit:
- Variation of acidity constants and pH values of some organic acids in water—2-propanol mixtures with solvent composition. Effect of preferential solvationAnalytica Chimica Acta, 1995
- Solvent effects on chemical processes. Part 7. Quantitative description of the composition dependence of the solvent polarity measure ET(30) in binary aqueous–organic solvent mixturesJournal of the Chemical Society, Perkin Transactions 2, 1994
- Solvent Effects on Chemical Processes. V: Hydrophobic and Solvation Effects on the Solubilities of Substituted Biphenyls in Methanol/Water MixturesJournal of Pharmaceutical Sciences, 1993
- Dissociation constants and preferential solvation in some 2-methylpropan-2-ol–alcohol mixturesJournal of the Chemical Society, Faraday Transactions, 1993
- Solvent Effects on Chemical Processes, I: Solubility of Aromatic and Heterocyclic Compounds in Binary Aqueous—Organic SolventsJournal of Pharmaceutical Sciences, 1992
- Solvent effects on chemical processes. 2. Binding constants of methyl orange with .alpha.-cyclodextrin in binary aqueous-organic solventsThe Journal of Organic Chemistry, 1992
- Relationship between ETpolarity and composition in binary solvent mixturesJournal of the Chemical Society, Faraday Transactions, 1992
- Relationship between solvatochromic solvent polarity and various thermodynamic and kinetic data in mixed solvent systemsJournal of the Chemical Society, Faraday Transactions, 1990
- A study in preferential solvation using a solvatochromic pyridinium betaine and its relationship with reaction rates in mixed solventsJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1988
- Über Pyridinium‐N‐phenol‐betaine und ihre Verwendung zur Charakterisierung der Polarität von LösungsmittelnEuropean Journal of Organic Chemistry, 1963