Chapter 7. Effect of Polarity on Fluorescence Emission. Polarity Probes

  1. Prof. Dr. Bernard Valeur

Published Online: 20 DEC 2001

DOI: 10.1002/3527600248.ch7

Molecular Fluorescence: Principles and Applications

Molecular Fluorescence: Principles and Applications

How to Cite

Valeur, B. (2001) Effect of Polarity on Fluorescence Emission. Polarity Probes, in Molecular Fluorescence: Principles and Applications, Wiley-VCH Verlag GmbH, Weinheim, FRG. doi: 10.1002/3527600248.ch7

Author Information

  1. Laboratoire de Chimie Générale, Conservatoire National des Arts et Métiers, 292 rue Saint-Martin, 75141 Paris Cedex 03, France

Publication History

  1. Published Online: 20 DEC 2001
  2. Published Print: 21 DEC 2001

ISBN Information

Print ISBN: 9783527299195

Online ISBN: 9783527600243

SEARCH

Keywords:

  • polarity;
  • solvatochromic shifts;
  • photoinduced charge transfer (PCT);
  • solvent relaxation;
  • polarity-induced inversion of n–π* state π–π* state;
  • vibronic bands;
  • Py scale

Summary

  • What is polarity?

  • Empirical scales of solvent polarity based on solvatochromic shifts

    • Single-parameter approach

    • Multi-parameter approach

  • Photoinduced charge transfer (PCT) and solvent relaxation

  • Theory of solvatochromic shifts

  • Examples of PCT fluorescent probes for polarity

  • Effects of specific interactions

    • Effects of hydrogen bonding on absorption and fluorescence spectra

    • Examples of the effects of specific interactions

    • Polarity-induced inversion of n–π* and π–π* states

  • Polarity-induced changes in vibronic bands. The Py scale of polarity

  • Conclusion