Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Kinetics of photochemical reactions of triphenylverdazyl radicals

  • 27 Accesses

  • 1 Citations

Conclusions

  1. 1.

    The basic pathways of photochemical destruction of an electronically excited triphenylverdazyl radical (TPV) are stripping of hydrogen from the solvent with the formation of the corresponding leuco-base, as well as its dissociation at the N-N bond with the formation, in particular, of aniline and 1,3-diphenyl-1,2,4-triazole.

  2. 2.

    From the concentration dependence of the rate of quenching of the radical it was found that the product of the rate constant of concentration quenching (kq) by the lifetime of the excited state (Τ) is equal to 5·103 liters/mole.

  3. 3.

    The dipole moment of the radical (2.94 D in the ground state) increases to 9 ± l D upon excitation.

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

Literature cited

  1. 1.

    M. Kinoshita and J. Minra, Makromolek. Chem.,124, 211 (1969).

  2. 2.

    R. Kuhn and H. Trischman, Monatsh. Chem.,95, 457 (1964).

  3. 3.

    A. L. Buchachenko and A. M. Vasserman, Stable Radicals [in Russian], Khimiya (1973).

  4. 4.

    N. G. Bakhshiev, M. I. Knyazhanskii, and V. I. Minkin, Uspekhi Khimii,38, 1644 (1969).

  5. 5.

    Takehiro Abe, Bull. Chem. Soc., Japan,39, 936 (1966).

  6. 6.

    M. Ito, K. Inuzuko, S. Imanisi, J. Amer. Chem. Soc.,82, 1317 (1960).

  7. 7.

    D. E. Williams, J. Amer. Chem. Soc.,91, 1243 (1969).

Download references

Author information

Additional information

Deceased

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2204–2208, October, 1974.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Bogatyreva, A.I., Polumbrik, O.M. & Buchachenko, A.L. Kinetics of photochemical reactions of triphenylverdazyl radicals. Russ Chem Bull 23, 2122–2125 (1974). https://doi.org/10.1007/BF00921267

Download citation

Keywords

  • Hydrogen
  • Excited State
  • Dipole Moment
  • Aniline
  • Triazole