Skip to main content
Log in

Molecular-orbital coefficients for dinuclear polymethyne dyes in the effective additive parameter method

  • Published:
Theoretical and Experimental Chemistry Aims and scope

Abstract

A method previously proposed for determining the energy structure of a polymethyne dye with any terminal groups is used in considering formulas for the molecularorbital coefficients and the differences in the distribution on the atoms in the polymethyne chain for localized and delocalized energy levels, as well as the accuracy in calculating the molecular-orbital coefficients by means of a finite number of effective additive parameters. It is found that the localized states are important to the electron-density distribution on the chain atoms characteristic of the polymethyne dyes.

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. G. G. Dyadyusha and M. N. Ushomirskii, “Effective additive parameters for parts of binuclear polymethyne dyes,” Teor. Éksp. Khim., 21, No. 3, 268–279 (1985).

    Google Scholar 

  2. M. Dewar, Molecular Orbital Theory in Organic Chemistry [Russian translation], Mir, Moscow (1972).

    Google Scholar 

  3. H. Hartmann, “MO-LCAO Berechnungen an Polymethinen. 10. Zusammenhänge zwischen Struktur und Eigenschaften organischer Farbstoffe mit Polymethin-Grund Chromophor,” J. Signal A. M., 7, No. 2, 101–118 (1979).

    Google Scholar 

  4. G. G. Dyadyusha and A. D. Kachkovskii, “Effects on the absorption spectra from structural changes in the polymethyne chains in symmetrical cyanin dyes,” Ukr. Khim. Zh., 44, No. 10, 1069–1075 (1978).

    Google Scholar 

  5. A. A. Ishchenko, N. A. Dervyanko, M. A. Kudinova, et al., “Chemical structure and absorption-band shape for pyrylcyanin dyes,” Teor. Éksp. Khim., 13, No. 6, 828–831 (1977).

    Google Scholar 

  6. G. G. Dyadyusha, A. D. Kachkovskii, V. I. Zamkovoi, et al., “Computer search for molecules With a given combination of spectral parameters,” Summaries of Reports of the Conference on Quantum Chemistry, Dnepropetrovsk, September 20–22, 1983 [in Russian], Dnepropetrovsk (1983), p. 106.

  7. C. A. Coulson and H. C. Longuet-Hlggins, “The electronic structure of conjugated systems. 1. General theory,” Proc. R. Soc., A, 191, No. 1, 39–60 (1947).

    Google Scholar 

  8. P. Lancaster, Matrix Theory [Russian translation], Nauka, Moscow (1978).

    Google Scholar 

  9. G. G. Dyadyusha and A. D., Kachkovskii, “Heterocyclic basicity and boundary molecularorbital coefficients for symmetrical cyanin dyes,” Ukr. Khim. Zh., 44, No. 9, 948–953 (1978).

    Google Scholar 

  10. E. Heilbronner, “Das Kompositions-Prinzips: eine anschauliche Methode zur elektronentheoretischer Behandlung nicht oder niedrig symmetrischer Molekeln in Ramen der MO-Theorie,” Helv. Chim. Acta, 36, No. 1, 170–188 (1953).

    Google Scholar 

  11. G. G. Dyadyusha, “Electronic spectra and structure of symmetrical organic compounds. Part 3. Substitution in the chromophors of symmetrical polymethyne dyes,” Ukr. Khim. Zh., 31, No. 11, 1171–1177 (1965).

    Google Scholar 

  12. G. G. Dyadyusha, “Electronic spectra and structure of symmetrical organic compounds. Part 4. Unsymmetrical dyes as derivatives of symmetrical ones,” ibid., No. 2, 1293–1301.

  13. D. A. Bochvar, I. P. Gambaryan, I. V., Stankevich, and A. P. Chistyakov, “The qualitative stability of heterocyclic systems in the Hückel approximation,” Zh. Fiz. Khim., 32, No. 12, 2797–2802 (1958).

    Google Scholar 

  14. G. G. Dyadyusha and A. D. Kaehkovskii, “Wavelengths of the first electronic transitions in symmetrical cyanin dyes,” Ukr. Khim. Zh., 41, No. 11, 1176–1181 (1975).

    Google Scholar 

  15. A. I. Kiprianov, S. G. Fridman, and L. S. Pupko, “Decolorization of cyanin dyes by alkalis and acids,” Scientific papers from the Institute of Organic Chemistry, Academy of Sciences of the UkrSSR [in Ukrainian], No. 13 (1947), pp. 40–67.

    Google Scholar 

  16. L. G. S. Brooker, “Spectra of dye molecules. Absorption and resonance in dyes,” Rev. Mod. Phys., 14, No. 2, 275–293 (1942).

    Google Scholar 

  17. V. S. Tyurin and M. A. Al'perovich, “Luminescence spectra of unsymmetrical cyanin dyes,” Summaries of Reports on Photographic Processes Based on Silver Halides, Chernogolovka, June 27–29, 1983 [in Russian], Chernogolovka (1983), pp. 120–122.

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 22, No. 2, pp. 137–145, March–April, 1986.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dyadyusha, G.G., Ushomirskii, M.N. Molecular-orbital coefficients for dinuclear polymethyne dyes in the effective additive parameter method. Theor Exp Chem 22, 127–134 (1986). https://doi.org/10.1007/BF00519182

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00519182

Keywords

Navigation