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Luminescence of flavonoid compounds

  • Yu. L. Frolov
  • Yu. M. Sapozhnikov
  • S. S. Barer
  • N. N. Pogodaeva
  • N. A. Tyukavkina
Brief Communications

Conclusions

  1. 1.

    The insertation of an electron-donor substituent into the flavone molecule leads to a decrease in the energy of the first excited S ππ * state and to a change in the relative arrangement of the nπ* andππ* levels. The theory was expressed that 3-hydroxyflavone can exist in two associative forms.

     
  2. 2.

    The luminescence spectra of 4'-hydroxyflavone and 7-hydroxyflavone depend on the wavelength of the exciting radiation.

     

Keywords

Radiation Flavonoid Flavone Luminescence Spectrum Flavonoid 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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Literature cited

  1. 1.
    J. B. Harborne, Methods in Polyphenol Chemistry, J. B. Pridman (editor), Pergamon Press, Oxford (1963), p. 13.Google Scholar
  2. 2.
    T. J. Mabry, R. K. Markham, and M. B. Thomas, The Systematic Identification of Flavonoids, Springer Verlag, West Berlin (1970), p. 35.Google Scholar
  3. 3.
    L. Jurd, in: The Chemistry of Flavonoid Compounds, T. A. Geissman (editor), Pergamon Press, Oxford (1962).Google Scholar
  4. 4.
    A. A. Efimov, R. N. Nurmukhametov, I. L. Belaits, and A. I. Tolmachev, Optika i Spektroskopiya,30, 4 (1971).Google Scholar
  5. 5.
    M. Kasha, Discussions Faraday Soc.,9, 14 (1950).Google Scholar

Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • Yu. L. Frolov
    • 1
  • Yu. M. Sapozhnikov
    • 1
  • S. S. Barer
    • 1
  • N. N. Pogodaeva
    • 1
  • N. A. Tyukavkina
    • 1
  1. 1.Irkutsk Institute of Organic ChemistrySiberian Branch of the Academy of Sciences of the USSRUSSR

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