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Influence of pH on EPR spectra of radical adducts with a new spin trap 1,2,2,5,5-pentamethyl-3-imidazoline 3-oxide

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

Conclusions

  1. 1.

    1,2,2,5,5-Pentamethyl-3-imidazoline 3-oxide is an effective spin trap for short-lived free radicals, forming spin adducts with life time of > 10min.

  2. 2.

    Protonation of the amine N atom of imidazoline is manifested in the EPR spectra of the spin adducts, which makes it possible to measure pH in the range of 2.5 to 4.

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Authors and Affiliations

  1. Institute of Chemical Kinetics and Combustion, Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk

    G. I. Skubnevskaya, G. G. Dul'tseva, G. I. Shchukin & L. B. Volodarskii

  2. Institute of Organic Chemistry, Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk

    G. I. Skubnevskaya, G. G. Dul'tseva, G. I. Shchukin & L. B. Volodarskii

Authors
  1. G. I. Skubnevskaya
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  2. G. G. Dul'tseva
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  3. G. I. Shchukin
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  4. L. B. Volodarskii
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 312–317, February, 1987.

The authors wish to express their gratitude to Yu. N. Molin, N. M. Bazhin and L. M. Vainer for useful discussion of the results of this work.

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Skubnevskaya, G.I., Dul'tseva, G.G., Shchukin, G.I. et al. Influence of pH on EPR spectra of radical adducts with a new spin trap 1,2,2,5,5-pentamethyl-3-imidazoline 3-oxide. Russ Chem Bull 36, 274–279 (1987). https://doi.org/10.1007/BF00959362

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  • DOI: https://doi.org/10.1007/BF00959362

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