Skip to main content
SpringerLink
Log in

Condensed heterocycles with a thiazole ring. 15. Dyes based on thiazolo[3,4-b][1,2,4]triazine

  • Published:
Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Unsymmetrical tri- and pentamethinecyanine dyes with a thiazolo[3,4-b][1,2,4]triazine ring were synthesized. The electron-density distribution on the atoms of the dyes in the ground, first, and second excited states was calculated by a quantum-chemical method. It was established that the first two electron transitions are localized on the same atoms of the dyes and that charge transfer to the triazine fragment of the molecule is realized upon excitation. The degree of participation of the heterocyclic ring in the first electron transition, which is responsible for the color of the dye, decreases with an increase in the length of the polymethine chain.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature Cited

  1. Yu. P. Kovtun, A. D. Kachkovskii, and N. N. Romanov, Khim. Geterotsikl. Soedin., No. 3, 418 (1988).

    Google Scholar 

  2. A. I. Kiprianov, Usp. Khim.,40, 1283 (1971).

    Google Scholar 

  3. A. D. Kachkovskii, Yu. P. Kovtun, and N. N. Romanov; Khim. Geterotsikl. Soedin., No. 12, 1693 (1986).

    Google Scholar 

  4. A. I. Kiprianov, Introduction to the Electronic Theory of Organic Compounds [in Russian], Naukova Dumka, Kiev (1975), p. 142.

    Google Scholar 

  5. T. H. James, Theory of the Photographic Process [Russian translation], Khimiya, Leningrad (1980).

    Google Scholar 

  6. G. G. Dyadyusha (Dyaduasha), A. I. Tolmachev, N. N. Romanov, E. K. Mikitenko, and A. D. Kachkovskii (Kachkovski), Dyes Pigments, No. 4, 179 (1983).

    Google Scholar 

  7. G. G. Dyadyusha and A. D. Kachkovskii, Ukr. Khim. Zh.,43, 948 (1978).

    Google Scholar 

  8. G. G. Dyadyusha and A. D. Kachkovskii, Teor. éksp. Khim.,17, 393 (1981).

    Google Scholar 

  9. G. Platt, J. Chem. Phys.,25, 80 (1956).

    Google Scholar 

  10. E. K. Mikitenko, A. D. Kachkovskii, and N. N. Romanov, Khim. Geterotsikl. Soedin., No. 5, 634 (1982).

    Google Scholar 

  11. E. K. Mikitenko and N. N. Romanov, Ukr. Khim. Zh.,48, 1071 (1983).

    Google Scholar 

  12. G. G. Dyadyusha, N. N. Romanov, A. D. Kachkovskii, and A. I. Tolmachev, Khim. Geterotsikl. Soedin., No. 12, 1618 (1980).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Organic Chemistry, Academy of Sciences of the Ukrainian SSR, 252660, Kiev

    Yu. P. Kovtun, N. N. Romanov & A. D. Kachkovskii

Authors
  1. Yu. P. Kovtun
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. N. Romanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. D. Kachkovskii
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

See [1] for Communication 14.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 985–991, July, 1988.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kovtun, Y.P., Romanov, N.N. & Kachkovskii, A.D. Condensed heterocycles with a thiazole ring. 15. Dyes based on thiazolo[3,4-b][1,2,4]triazine. Chem Heterocycl Compd 24, 812–818 (1988). https://doi.org/10.1007/BF00633183

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00633183

Keywords

Search

Navigation