Polarity and hydrogen-bonding ability of some binary aqueous-organic mixtures

Yoelit Migron, Yizhak Marcus*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

The solvatochromic parameters π* for the polarity/polarizability, β for the hydrogen-bond accepting (electron-pair-donating) ability, and α for the hydrogen-bond-donating ability of binary aqueous tetrahydrofuran, N,N-dimethylformamide, pyridine, dimethyl sulphoxide, formamide and formic acid have been determined spectrophotometrically at 25 °C as functions of the composition of the mixtures. They were compared with the local composition of the environment of each kind of molecules in the mixtures, obtained from theoretical models. These parameters were also determined for several water-saturated alkanols and tri-n-butyl phosphate, that are of significance in liquid-liquid distribution studies of organic solutes.

Original languageEnglish
Pages (from-to)1339-1343
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume87
Issue number9
DOIs
StatePublished - 1991

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