Journal of Structural Chemistry

, Volume 26, Issue 1, pp 34–38 | Cite as

Quadrupole effects in the electron spin echo from pairs of diphenylnitryl radicals

  • S. A. Dikanov
  • A. V. Astashkin
  • Yu. D. Tsvetkov


This analysis of ESE modulation effects for DPN pairs indicates that the frequencies are those of quadrupole resonance for the nitrogen atoms in the DPN in the external magnetic field, and this has enabled us to determine the quadrupole splitting parameters. However, an exact calculation on the NQR transition frequencies in the partially oriented system requires a knowledge of the directions of the electric field gradient tensor axes, which cannot be derived from these experiments. For this reason, in a study of this type one must make the fullest possible use of data from other experiments or from quantum-chemical calculations, which should enable one to restrict the possible directions for the EFG tensor axes.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. 1.
    W. B. Mims, in: Electron Paramagnetic Resonance, S. Geschwind (ed.), Plenum Press, New York (1972).Google Scholar
  2. 2.
    K. M. Salikhov, A. G. Semenov, and Yu. D. Tsvetkov, Electron Spin Echo and Its Applications [in Russian], Nauka, Novosibirsk (1976).Google Scholar
  3. 3.
    S. A. Dikanov, V. F. Yudanov, and Yu. D. Tsvetkov, Zh. Strukt. Khim.,18, 460 (1977).Google Scholar
  4. 4.
    L. Kevan, in: Domain Electron Spin Resonance, L. Kevan and R. N. Schwartz (eds.), Wiley-Interscience, New York (1979).Google Scholar
  5. 5.
    C. Cheng, T.-S. Lin, and D. J. Sloop, Chem. Phys. Lett.,44, 576 (1976).Google Scholar
  6. 6.
    D. C. Doetschman, E. S. Fierstain, J. Michaelis, et al., Chem. Phys. Lett.,74, 539 (1980).Google Scholar
  7. 7.
    T.-S. Lin, M. K. Bowman, J. R. Norris, and G. L. Closs, Chem. Phys. Lett.,78, 283 (1981).Google Scholar
  8. 8.
    D. J. Sloop, H.-L. Yu, T.-S. Lin, and S. I. Weisman, J. Chem. Phys.,75, 3746 (1981).Google Scholar
  9. 9.
    H.-L. Yu, D. J. Sloop, S. I. Weisman, et al., J. Phys. Chem.,86, 4287 (1982).Google Scholar
  10. 10.
    M. K. Bowman and J. R. Norris, J. Chem. Phys.,77, 731 (1982).Google Scholar
  11. 11.
    A. G. Semenov, M. D. Shirov, V. D. Zhidkov, et al., Preprint No. 3, IKhKiG, SO AN SSSR Novosibirsk.Google Scholar
  12. 12.
    S. M. Key and S. L. Marple, Proc. IEEE,69, 1380 (1981).Google Scholar
  13. 13.
    D. Van Ormondt and K. Nederveen, Chem. Phys. Lett.,82, 443 (1981).Google Scholar
  14. 14.
    H. Barkhuijsen, R. de Beer, E. L. de Wild, and D. van Ormondt, J. Magn. Reson.,50, 299 (1982).Google Scholar
  15. 15.
    A. V. Astashkin, S. A. Dikanov, and Yu. D. Tsvetkov, Zh. Strukt. Khim.,25, No. 1, 53 (1984).Google Scholar
  16. 16.
    D. A. Wiersma and I. Kommandeur, J. Mol. Phys.,13, 241 (1967).Google Scholar
  17. 17.
    A. V. Zubkov, A. T. Koritskiy, and Ya. S. Lebedev, Dokl. Akad. Nauk SSSR,180, 1150 (1968).Google Scholar
  18. 18.
    D. A. Wiersma, I. Lichtenbelt, and J. Kommandeur, J. Chem. Phys.,50, 2794 (1969).Google Scholar
  19. 19.
    W. B. Mims, Phys. Rev.,B5, 2409 (1972).Google Scholar
  20. 20.
    Landolt-Börnstein: Numerical Data and Functional Relations,9, Part C1.Google Scholar
  21. 21.
    G. M. Muha, J. Chem. Phys.,73, 4139 (1980).Google Scholar

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • S. A. Dikanov
    • 1
  • A. V. Astashkin
    • 1
  • Yu. D. Tsvetkov
    • 1
  1. 1.Institute of Chemical Kientics and Combustion, Siberian Branch, Academy of Sciences of the USSRUSSR

Personalised recommendations