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Novel Radical Ions: Generation and Properties. An Interim Report on PES and ESR Investigations by the Frankfurt Group

  • H. Bock
  • G. Brähler
  • W. Kaim
  • M. Kira
  • B. Roth
  • A. Semkow
  • U. Stein
  • A. Tabatabai
Part of the The IBM Research Symposia Series book series (IRSS)

Abstract

The earliest tempestuous years of Electron Spin Resonance spectroscopy1,2 — comprising development of the method, commercial production of high-resolution spectrometers complemented by the ENDOR technique and measurement of the hyperfine structures of thousands of radicals — should now be superseded by a time of reflection about practical application. Based on the experience gathered, it is now feasible that the preparative chemists participate by designing novel oxidizable compounds, inventing new redox systems, finding thermal or irradiative pathways for radical generation, studying their prospective properties and trying to isolate them. Thus in the future, new organic conductors may become available, although presently other areas of interest still dominate. To point out just one of the general auspices of ESR applications: on oxidation or on reduction, molecules M form new species Mn+ or Mn-, and the loss or the acquisition of electrons is connected not only to the energy difference between the molecular ground state and the state of the ion generation but as well accompanied by a charge redistribution, i.e. structural changes. Therefore, in view of the current interest in detailed pathways of reactions, redox processes may attract some attention.

Keywords

Electron Spin Resonance Radical Cation Radical Anion Spin Population Effective Nuclear Charge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • H. Bock
    • 1
  • G. Brähler
    • 1
  • W. Kaim
    • 1
  • M. Kira
    • 1
  • B. Roth
    • 1
  • A. Semkow
    • 1
  • U. Stein
    • 1
  • A. Tabatabai
    • 1
  1. 1.Institute of Inorganic ChemistryJohann Wolfgang Goethe UniversityFrankfurt am Main 50West Germany

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