Journal of Radioanalytical and Nuclear Chemistry

, Volume 134, Issue 1, pp 129–140 | Cite as

Oscillatory annealing behaviour of three neutron-irradiated crystalline cobalt(III) complexes

  • H. Papaefthymiou
Article

Abstract

The oscillatory isothermal behaviour of three cobalt(III) compounds, trans- and cis[Co(en)2Cl2]NO3 and [Co(en)3] (NO3)3, irradiated by neutrons in the crystalline state, appears to be different depending on structural and electrostatic parameters. The temperature coefficient of frequency in the trans and cis compounds is negative, while that of the amplitude is positive. Both temperature coefficients are the opposite in case of the trisethylenediamine compound. The oscillatory isotope exchange, responsible for these phenomena, is mechanistically approached by applying a modified Lotka-Volterra model to the radiation damaged state in the frame of non-equilibrium thermodynamics.

Keywords

Radiation Physical Chemistry Cobalt Inorganic Chemistry Temperature Coefficient 
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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References

  1. 1.
    P. N. DIMOTAKIS, H. PAPAEFTHYMIOU, B. SYMEOPOULOS, Radiat. Effects, 91 (1985) 39.Google Scholar
  2. 2.
    P. N. DIMOTAKIS, H. PAPAEFTHYMIOU, Radiat. Effects, 88 (1986) 223.Google Scholar
  3. 3.
    W. C. BRAY, J. Am. Chem. Soc., 43 (1921) 1262.CrossRefGoogle Scholar
  4. 4.
    R. M. NOYES, R. J. FIELD, Ann. Rev. Phys. Chem., 25 (1974) 95.CrossRefGoogle Scholar
  5. 5.
    P. N. DIMOTAKIS, H. PAPAEFTHYMIOU, Radiochem. Radioanal. Lett., 48 (1981) 263.Google Scholar
  6. 6.
    P. N. DIMOTAKIS, H. PAPAEFTHYMIOU, Radiochem. Radioanal. Lett., 50 (1981) 131.Google Scholar
  7. 7.
    P. N. DIMOTAKIS, B. SYMEOPOULOS, Radiochem. Radioanal. Lett., 52 (1982) 185.Google Scholar
  8. 8.
    P. N. DIMOTAKIS, M. SOUPIONI, Radiochem. Radioanal. Lett., 54 (1982) 309.Google Scholar
  9. 9.
    P. N. DIMOTAKIS, Nature, 224 (1969) 1198.Google Scholar
  10. 10.
    P. N. DIMOTAKIS, Rad. Effects Lett., 68 (1982) 45.Google Scholar
  11. 11.
    J. C. BALLARD, Jr., “Inorganic Syntheses”, Fernelius ed., McGraw-Hill, Inc., N.Y., 2 (1946) 223.Google Scholar
  12. 12.
    J. B. WORK, ibid.“, 2 (1946) 221.Google Scholar
  13. 13.
    D. T. HAWORTH, K. U. ELSEN, J. of Chem. Educ., 50 (1973) 300.Google Scholar
  14. 14.
    J. HIGGINS, The Theory of Oscillating Reactions, App. Kin. and Chem. React. Eng., ACS pub., Washington, D.C., 1967 p. 144.Google Scholar

Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • H. Papaefthymiou
    • 1
  1. 1.Radiochemistry LaboratoryUniversity of PatrasPatras(Greece)

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