Skip to main content
Log in

Intersystem conversions in polyatomic molecules within the model of stepwise relaxation of electronic recitation energy

  • Published:
Theoretical and Experimental Chemistry Aims and scope

Abstract

Within the model of stepwise relaxation of electronic excitation energy (the

model), we analyze the features of the luminescent spectral characteristics of aromatic and heteroaromatic molecules.We have shown that in order to satisfactorily explain the experimental data, we need to use a special case of the

model, the -

mechanism. We discuss the conditions under which the VaviIov rule and the Kasha and 8rmolaev-Sveshnikova rules are satisfied.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature cited

  1. V. A. Godik, “The orbital configuration of electronically excited states and the luminescent spectral properties of heteroaromatic molecules,” Dissertation in competition for the academic degree of Candidate of the Physical and Mathematical Sciences, Moscow (1981).

    Google Scholar 

  2. V. A. Godik, M. A. Pak, A. N. Rodionov, and D. N. Shigorin, “Intersystem conversion in polyatomic molecules. 3.,” Zh. Fiz. Khim.,59, No. 11, 2755–2759 (1985).

    Google Scholar 

  3. K. L. Rogoshin, A. N. Rodionov, S. G. Smirnov et al., “Electronic spectra and structure of aromatic derivatives of Group IVB and VB elements,” Izv. Akad. Nauk SSSR, Ser. Khim. No. 1, 338–342 (1976).

    Google Scholar 

  4. S. N. Davydov, V. A. Godik, A. N. Rodionov et al., “Some characteristics of deactivation of electronically excited states of heteroaromatic derivatives of the fluorene series,” Zh. Fiz. Khim.,58, No. 10, 2499–2502 (1984).

    Google Scholar 

  5. R. N. Nurmukhametov and V. G. PIotnikov, “Radiationless transitions and luminescence of molecules of aromatic hydrocarbons,” Izv. Akad. Nauk SSSR, Ser. Fiz.,39, No. 11, 2259–2263 (1975).

    Google Scholar 

  6. M. Blume and R. E. Watson, “Theory of spin-orbit coupling in atoms. 2. Comparison of theory with experiment,” Proc. Soc. London A,271, No. 1219, 565–578 (1963).

    Google Scholar 

  7. D. S. McClure, “Spin-orbit interaction in aromatic molecules,” J. Chem. Phys.,20, No. 4, 682–686 (1952).

    Google Scholar 

  8. L. Goodman and R. W. Harrell, “Calculation of 25-4 transition energies in N-heterocycIic molecules by a one-electron approximation,” J. Chem. Phys.,30, No. 5, 1131–1138 (1959).

    Google Scholar 

  9. V. A. Godik, V. K. Potapov, A. N. Rodionov, and D. N. Shigorin, “Configuration of the highest occupied molecular orbital, the first ionization potential, and the electronic structure of hetezoaromatlc molecules,” Teor. Éksp. Khim.,20, No. 1, 373–376 (1984).

    Google Scholar 

  10. V. A. Godik, G. G. Konoplev, A. N. Rodionov, and D. N. Shigorin, “Structure of matrices for the change in electron density, an interaction, and the orbital configuration of excited states of complex heteroaromatic molecules,” Zh. Fiz. Khim.,59, No. 8, 1966–1969 (1985).

    Google Scholar 

  11. V. A. Godik, A. N. Rodionov, and D. N. Shigorin, “The structure of matrices for the change in electron density and the orbital configuration of the excited states for complex heteroaromatic molecules,” Zh. Fiz. Khim.,59, No. 9, 240–2246 (1985).

    Google Scholar 

  12. V. A. Godik, S. N. Davydov, G. G. Konoplev et al”, “Quantum chemical study of the triplet states of fluorene, carbazole, and dibenzofuran.” Teor. Éksp. Khim.,18, No. 3, 323–327 (1982).

    Google Scholar 

  13. J. -M. Bonnier, P. Jardon, and J. -P. Blanchi, “Fluorescence of isologs of dibenzofuran at energy transfer to phenylthienyl-3-ketone,” Bull. Soc. Chim. France, No. 12, 4787–4790 (1968).

    Google Scholar 

  14. V. L. Ermolaev and E. B. Sveshnikova, “Application of triplet-singlet transfer to the study of internal degrdation of electronic energy in organic molecules,” Optika i Spektroskopiya,16, No. 4, 587–593 (1964).

    Google Scholar 

  15. M. Kasha, “Characterization of electron transition in complex molecules,” Faraday Disc. Chem. Soc.,9, No. l, 14–19 (1950).

    Google Scholar 

  16. V. V. Ryl'kov and D. A. Cheshev, “Singlet -triplet interconversion in upper states of xanthene dyes,” in: Abstracts, All-Union Conference on Organic Luminophores and Their Application in the National Economy, Khar'kov December 5-7, 1984 [in Russian], Khar'kov (1984), p. 140.

Download references

Authors

Additional information

L. Ya. Karpov Scientific-Research Physical Chemistry Institute, Moscow. Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 27, No. 1, pp. 22–28, January, 1991. Original article submitted March 9, 1987.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Godik, V.A., Rodinov, A.N. & Shigorin, D.N. Intersystem conversions in polyatomic molecules within the model of stepwise relaxation of electronic recitation energy. Theor Exp Chem 27, 20–25 (1991). https://doi.org/10.1007/BF01372918

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01372918

Keywords

Navigation