Applied Magnetic Resonance

, Volume 20, Issue 4, pp 473–482 | Cite as

Paramagnetic relaxation of radical cations in alkane solutions as measured by time-resolved magnetic field effects

  • A. S. Mashnin
  • S. V. Anishchik
  • V. I. Borovkov
  • I. V. Yeletskikh
  • O. A. Anisimov
  • Yu. N. Molin


Spin-lattice relaxation times of radical cations were measured by the decay of the time-resolved magnetic field effect in the recombination fluorescence of radical ion pairs in liquid hydrocarbons at high concentrations of solvent holes acceptor. The dependences of spin-lattice relaxation time on the magnetic field strength and solvent viscosity were studied. The results could not be explained in terms of the model of ion-molecular charge transfer involving monomeric or dimeric radical cations. The paramagnetic relaxation observed in a weak magnetic field is attributed to internal reorganizations of aggregates that originate from radical cations at high acceptor concentration.


Radical Cation Magnetic Field Strength Weak Magnetic Field Solvent Viscosity Magnetic Field Effect 
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Copyright information

© Springer 2001

Authors and Affiliations

  • A. S. Mashnin
    • 1
  • S. V. Anishchik
    • 1
    • 2
  • V. I. Borovkov
    • 1
    • 2
  • I. V. Yeletskikh
    • 2
  • O. A. Anisimov
    • 1
  • Yu. N. Molin
    • 1
  1. 1.Institute of Chemical Kinetics and CombustionRussian Academy of SciencesNovosibirskRussian Federation
  2. 2.Novosibirsk State UniversityNovosibirskRussian Federation

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