Skip to main content
Log in

Study of triplet states of some ketocyanine dyes, the polyenic bis-ω,ω′-dimethylamino ketones

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

Conclusions

  1. 1.

    The triplet states of some dimethylamino ketones were recorded, and their kinetic spectral characteristics in various solvents were studied.

  2. 2.

    A splitting of the T-T spectra of some symmetrical polyenic bis-dimethylamino ketones was observed, which is explained by the interaction of the chromophores.

  3. 3.

    The energies of the lower triplet states of a number of dyes were estimated; their values are determined by the chromophore with the longer polymethine chain.

  4. 4.

    In toluene the interaction of the chromophores has no effect on the position of the first triplet level of the dyes, probably because of their relatively small energy when compared with the value of the barrier that is created by the connecting C=Ogroup. In propanol this effect is manifested due to decrease in the C=O barrier.

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.

Literature cited

  1. L. A. Shvedova, Yu. E. Borisevich, A. S. Tatikolov, V. A. Kuz'min, and Zh. A. Krasnaya, Izv. Akad. Nauk SSSR, Ser. Khim., 819 (1983).

  2. Zh. A. Krasnaya, T. S. Stytsenko, E. P. Prokof'ev, and V. F. Kucherov, Izv. Akad. Nauk SSSR, Ser. Khim., 1362 (1980).

  3. Zh. A. Krasnaya and T. S. Stytsenko, Izv. Akad. Nauk SSSR, Ser. Khim., 855 (1983).

  4. A. N. Kiprianov and G. G. Dyadyusha, Ukr. Khim. Zh.,35, 608 (1969).

    Google Scholar 

  5. Yu. E. Borisevich, Dokl. Akad. Nauk SSSR,241, 1359 (1978).

    Google Scholar 

  6. A. S. Davydov, Theory of Molecular Excitons [in Russian], Nauka, Moscow (1968).

    Google Scholar 

  7. Yu. E. Borisevich, Dokl. Akad. Nauk SSSR,229, 131 (1976).

    Google Scholar 

  8. H. Reichardt, Solvents in Organic Chemistry [Russian translation], Moscow (1973), p. 137.

  9. W. G. Herkstroeter, J. Am. Chem. Soc.,97, 4161 (1975).

    Google Scholar 

  10. K. Sandros, Acta Chem. Scand.,18, 2355 (1964).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1421–1425, June, 1983.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Shvedova, L.A., Borisevich, Y.E., Tatikolov, A.S. et al. Study of triplet states of some ketocyanine dyes, the polyenic bis-ω,ω′-dimethylamino ketones. Russ Chem Bull 32, 1290–1293 (1983). https://doi.org/10.1007/BF00953178

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00953178

Keywords

Navigation