The relation between the nonlinear dielectric effect and solvent polarity |
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Authors: | Maria Dutkiewicz Edward Dutkiewicz |
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Affiliation: | (1) Institute of Physics, A. Mickiewicz University, ul. Grunwaldzka 6, 60-780 Pozna, Poland;(2) Department of Physical Chemistry, A. Mickiewicz University, ul. Grunwaldzka 6, 60-780 Pozna, Poland |
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Abstract: | The relation between solvent polarity expressed through the Dimroth-Reichardt spectroscopic parameter ET(30) and the nonlinear dielectric effect (NDE) expressed through the parameter /E2 is demonstrated where is a change in the electric permittivity of a solvent in an external strong electric field E. Both ET(20) and /E2, determined in quite different ways, are extremely sensitive to the dielectric properties of a solvent which depend on molecular interactions. Linear correlations between /E2 and ET(30) have been found for n-alkanols representing hydrogenbond donor solvents, and for halogenobenzenes which are dipolar, aprotic, weakly-associated solvents.Part of this work was presented at The 22nd International Conference on Solution Chemistry in Linz, Austria, July 1991. |
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Keywords: | Solvent polarity spectroscopic parameterET(30) nonlinear dielectric effect n-alkanols haologenobenzenes |
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