Journal of Solution Chemistry

, Volume 23, Issue 6, pp 697–701 | Cite as

H-bond acidity of solvents: II. Transformation of the Snyder chi proton donor scale to the Taft-Kamlet alpha scale

  • Daniel C. Leggett


By including a solvent cohesion term it was possible to transform Snyder's χd scale into the Taft-Kamlet α scale for aliphatic H-bonding solvents. The transforming equation was:
$$\alpha = 2.386_{\chi d} + 1.27\alpha \beta - 0.482$$
where αβ is the product of solvent acidity and basicity. Alpha is estimated for several solvents previously not thought to posses H-donor ability. These are dimethyl sulfoxide, nitroethane, dimethylformamide, dioxane, dimethylacetamide, propylene carbonate, ethyl acetate, butyrolactone, N-methylpyrrolidinone, and cyclohexanone.

Key Words

Solvent acidity alpha (α) linear solvation energy relationships (LSER) solvent cohesion solubility parameters 


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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • Daniel C. Leggett
    • 1
  1. 1.Department of the Army, Cold Regions Research and Engineering LaboratoryCorps of EngineersHanover

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