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Reactions of Ion — Radicals and Solvated Electrons

  • E. T. Denisov

Abstract

Ion-radicals are formed by the action of alkali metals on aromatic compounds in aprotonic solvents. The ion-radicals exist in solution and react in the form of free particles and in the form of ion pairs, for example, C10H8 -Na+ . An aromatic ion-radical will rapidly exchange an electron with an aromatic molecule. The rate constants for exchange between an ion-radical and a molecule of identical structure are in the range of 106 to 108 liter/mole·sec. The electron exchange rate is measured by EPR on the basis of absorption band broadening in the EPR spectrum (see Chapter IV, §2). Ion-radicals can bring about the anionic polymerization of unsaturated compounds, acting as initiator-ions and entering into a reaction of radical substitution, for example
$${C_{10}}H_8^{{\text{ }} - {\text{ }}}{\text{ }} + {\text{ }}ROH \to {C_{10}}{H_9}\cdot{\text{ }} + {\text{ }}R{O^{{\text{ }} - {\text{ }}}}$$
Rate constants for reactions of ion-radicals with molecules are listed in Table 109.

Keywords

Anionic Polymerization Aprotonic Solvent Room Temperature Compound 
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

© IFI/Plenum Data Company 1974

Authors and Affiliations

  • E. T. Denisov
    • 1
  1. 1.Institute of Chemical PhysicsMoscowUSSR

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