Classification of organic solvents based on correlation between dielectric ? parameter and empirical solvent polarity parameter E N T
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 86 (12) , 2237-2241
- https://doi.org/10.1039/ft9908602237
Abstract
It is proposed that the ratio µ2/V, from electrostatic solvation theory, be used to designate solvent polarity; µ is the dipole moment and V the molar volume. The 101 solvents analysed can be divided into four classes (and two subclasses) by means of the correlation between the dielectric β parameter (proportional to µ2/V) and the empirical solvent polarity parameter EN T. Although the method proposed is very simple, the results agree very well with those obtained by a much more complex multivariate statistical method (M. Chastrette, M. Rajzmann, M. Chanon and K. F. Purcell, J. Am. Chem. Soc., 1985, 107, 1). Moreover some solvents, that are apparently non-conformist under the Chastrette criteria, can be classified in line with their molecular properties under the method described here.Keywords
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