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Cis-trans isomerization of polymethine dyes in the case of pulsed photoexcitation

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    In the case of pulsed illumination of symmetrical cyanine dyes, there are transitory reversible changes in the absorption spectrum, due to the formation of photoisomers. For carbocyanine molecules with a substituent in the meso-position, as well as for thiamonomethinecyanine, an extremely low value of the quantum yield of photoisomerization was detected.

  2. 2.

    Cis-trans-photoisomerization occurs at the singlet excited level.

  3. 3.

    Measurements of the kinetics of relaxation revealed a first order of the reaction, in accord with the monomolecular process: trans(cis) ⇝ cis(trans).

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Literature cited

  1. F. Dorr, J. Kotschy, and H. Kausen, Ber. Bunsen. Phys. Chem.,69, 11 (1965).

    Google Scholar 

  2. P. J. MacCartin, J. Chem. Phys.,42, 2980 (1965).

    Google Scholar 

  3. W. West, S. Pearce, and F. Grum, J. Phys. Chem.,71, 1316 (1967).

    Google Scholar 

  4. A. K. Chibisov, Teoret. i Éksperim. Khimiya,2, 825 (1967).

    Google Scholar 

  5. A. K. Chibisov, V. A. Kuz'min, and A. P. Vinogradov, Dokl. Akad. Nauk SSSR,187, 142 (1969).

    Google Scholar 

  6. G. S. Hammond and J. Saltiel, J. Amer. Chem. Soc.,84, 4983 (1962).

    Google Scholar 

  7. J. Saltiel, J. Amer. Chem. Soc.,89, 1037 (1967).

    Google Scholar 

  8. E. Fisher, J. Amer. Chem. Soc.,90, 796 (1968).

    Google Scholar 

  9. L. B. Jones and G. S. Hammon, J. Amer. Chem. Soc.,87, 4219 (1965).

    Google Scholar 

  10. Yu. I. Lifanov, I. I. Levkoev, V. A. Kuz'min, and A. K. Chibisov, Khim. Vysokikh Énergii,7, No. 4 (1973).

  11. A. K. Chibisov, V. A. Kuz'min, G. P. Roitman, I. I. Levkoev, and A. V. Karyakin, Izv. Akad. Nauk SSSR, Ser. Khim.,34, 1288 (1970).

    Google Scholar 

  12. G. Wettermerk, Nobel Symposium 5: Fast Reactions and Primary Processes in Chemical Kinetics, New York (1967), p. 325.

  13. L. G. S. Brooker, D. W. Heseltine, and L. L. Lincoln, Chimia,20, 327 (1966).

    Google Scholar 

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Authors and Affiliations

  1. V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Academy of Sciences of the USSR, USSR

    Yu. I. Lifanov, V. A. Kuz'min, A. V. Karyakin, A. K. Chibisov & I. I. Levkoev

  2. All-Union Scientific Research Institute of the Chemicophotographic Industry, USSR

    Yu. I. Lifanov, V. A. Kuz'min, A. V. Karyakin, A. K. Chibisov & I. I. Levkoev

  3. Volgograd Polytechnic Institute, USSR

    Yu. I. Lifanov, V. A. Kuz'min, A. V. Karyakin, A. K. Chibisov & I. I. Levkoev

Authors
  1. Yu. I. Lifanov
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  2. V. A. Kuz'min
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  3. A. V. Karyakin
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  4. A. K. Chibisov
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  5. I. I. Levkoev
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 787–790, April, 1973.

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Lifanov, Y.I., Kuz'min, V.A., Karyakin, A.V. et al. Cis-trans isomerization of polymethine dyes in the case of pulsed photoexcitation. Russ Chem Bull 22, 766–768 (1973). https://doi.org/10.1007/BF00857045

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  • DOI: https://doi.org/10.1007/BF00857045

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