Solvatochromie Shifts and Polarity of Solvent Mixtures

Authors

  • Karl-Stephan Nitsche Institute of Physical Chemistry of the University of Fribourg, Pérolles, CH-1700 Fribourg
  • Paul Suppan Institute of Physical Chemistry of the University of Fribourg, Pérolles, CH-1700 Fribourg

DOI:

https://doi.org/10.2533/chimia.1982.346

Abstract

The local polarity of solvent mixtures near a polar solute molecule can be very different from the mixture’s bulk polarity. A general mechanism which determines the local polarity is the “dielectric enrichment” which is described by the thermodynamic equilibrium in a solvent shell enriched in polar solvent. This equilibrium and the resulting local polarity can be described quantitatively by the balance between the electrostatic stabilization energy and the entropy of unmixing of a solvent shell enriched in polar solvent.

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Published

1982-09-30

Issue

Vol. 36 No. 9 (1982): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1982 Karl-Stephan Nitsche

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
K.-S. Nitsche, P. Suppan, Chimia 1982, 36, 346, DOI: 10.2533/chimia.1982.346.