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Effect of an external heavy atom on the EPR spectrum of the fluorescein semiquinone radical

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Abstract

The effect of an external heavy atom on the EPR spectra of radicals in homogeneous liquid solutions was investigated. Broadening of the lines in the EPR spectrum of the fluorescein semiquinone radical in water-ethanol solution was found under the effect of the external heavy atom. It was hypothesized that this broadening is due to an increase in the anisotropy of the g-factor due to potentiation of the spinorbital interaction on contact with the external heavy atom.

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Authors and Affiliations

  1. N. N. Semenov Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow

    E. S. Klimchuk, B. P. Makarov, Yu. A. Serebrennikov & I. V. Khudyakov

Authors
  1. E. S. Klimchuk
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  2. B. P. Makarov
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  3. Yu. A. Serebrennikov
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  4. I. V. Khudyakov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1778–1781, August, 1989.

We would like to thank V. A. Roginskii for his assistance in the research and valuable advice, and B. F. Minaev for his useful discussion of the mechanism.

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Klimchuk, E.S., Makarov, B.P., Serebrennikov, Y.A. et al. Effect of an external heavy atom on the EPR spectrum of the fluorescein semiquinone radical. Russ Chem Bull 38, 1627–1630 (1989). https://doi.org/10.1007/BF00956944

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  • DOI: https://doi.org/10.1007/BF00956944

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