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Electronic absorption spectra of flavonoids

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

Conclusions

  1. 1.

    Calculations were made of the UV spectra of flavone and its OR derivatives. An assignment of the absorption bands of flavonoids was made.

  2. 2.

    For the first three electronically excited states, the configurational interaction (CI) encompasses only the occupied 1, 2, 3, and vacant 1*, 2*, 4* orbitals. The molecular orbital 6, with predominant localization of charge on the substituent, does not participate in the CI of the first three excited states.

  3. 3.

    Excitation of the investigated molecules is accompanied by a transfer of charge from the oxygen atom, double bond, and carbonyl group to the benzene rings.

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Authors and Affiliations

  1. Irkutsk Institute of Organic Chemistry, Siberian Branch of the Academy of Sciences of the USSR, USSR

    Yu. L. Frolov, Yu. M. Sapozhnikov, S. S. Barer & L. V. Sherstyannikova

Authors
  1. Yu. L. Frolov
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  2. Yu. M. Sapozhnikov
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  3. S. S. Barer
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  4. L. V. Sherstyannikova
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1294–1298, June, 1974.

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Frolov, Y.L., Sapozhnikov, Y.M., Barer, S.S. et al. Electronic absorption spectra of flavonoids. Russ Chem Bull 23, 1218–1221 (1974). https://doi.org/10.1007/BF00923082

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  • DOI: https://doi.org/10.1007/BF00923082

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