VESTNIK
Bashkirskogo universiteta

RUSSIAN
ISSN 1998-4812

Archive | Volume 20, 2015, No. 3.

FERROCENE-CATALYZED CHEMILUMINESCENT REACTION OF THE TRIFLUOROACETONE DIPEROXIDE DECOMPOSITION

Vestnik Bashkirskogo Universiteta. 2015. Vol. 20. No. 3. Pp. 841-844.
Galimov D. I.
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences
141 Oktyabrya Ave., 450075 Ufa, Republic of Bashkortostan, Russia.
Email: galimovdi@mail.ru
Nazyrov T. I.
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences
141 Oktyabrya Ave., 450075 Ufa, Republic of Bashkortostan, Russia.
Bilalova S. R.
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences; M. Akmullah Bashkir State Pedagogical University; 3a Oktyabrskoy Revolutsii St., 450000 Ufa, Republic of Bashkortostan, Russia
141 Oktyabrya Ave., 450075 Ufa, Republic of Bashkortostan, Russia.
Gazeeva D. R.
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences
141 Oktyabrya Ave., 450075 Ufa, Republic of Bashkortostan, Russia.
Bulgakov R. G.
Institute of Petrochemistry and Catalysis, Russian Academy of Sciences
141 Oktyabrya Ave., 450075 Ufa, Republic of Bashkortostan, Russia.

Abstract

The bridged 1,2,4,5-tetraoxanes with two peroxy groups have a broad range of biological activities and are very effective drug against malaria. At the same time, the mechanism of their therapeutic action is still subject to debate. In this article, to establish the role of divalent iron compounds in the decomposition of 1,2,4,5-tetraoxanes as one of the key therapeutic effects of tetraoxanes, we have studied the dark and light processes occurring in the system trifluoroacetone diperoxide (DPTFA) - Cp2Fe. With the help of iodometric titration and chemiluminescence (CL) method, it was found that Cp2Fe efficiently catalyzed the decomposition of DPTFA. The observed effect is important because catalytic redox processes involving different valence states of iron ions take place in a living system as well. At the interactions of DPTFA with Cp2Fe, a low-intense CL was observed, which is enhanced by the rhodamine G. The primary emitter responsible for this CL are triplet and singlet excited states of 1,1,1-trifluoroacetone. The kinetic characteristics of CL, spectra and quantum yields of direct (~8∙10-9 Einstein∙mol-1) and enhanced (~2∙10-7 Einstein∙mol-1) CL were measured. It is found that with the use of CL-system DPTFA-Cp2Fe-CH3CN-H2O-rhodamine 6G, it is possible to detect tetraoxanes in a very wide range of concentrations (10-1÷10-8 M).

Keywords

  • • chemiluminescence
  • • tetraoxanes
  • • iron(II)
  • • electronically excited states

References

  1. Meunier B. Acc. Chem. Res. 2008. Vol. 41.Pp. 69–77.
  2. Adam W., Asensio G., Curci R., Marco J. A., González-NúñezM.-E., Mello R. Tetrahedron Lett. 1992. Vol. 33. Pp. 5833–5836.
  3. Siggia S., Hanna J. Quantitative Organic Analysis via Functional Groups.New-York, Chichester, Brisbane, Toronto, 1979.
  4. Instruktsiya po ekspluatatsii «Apparat dlya bidistillyatsii vody». Moscow: Otdelenie nauchno-tekhnicheskoi informatsii po priborostroeniyu, sredstvam avtomatizatsii i sistemam upravleniya.1966.
  5. Bulgakov R. G., Eliseeva S. M., Galimov D. I. J. Lumin. 2013. Vol. 136. Pp. 95–99.
  6. Kazakov D. V., Timerbaev A. R., Safarov F. E., Nazirov T. I., Kazakova O. B., Ishmuratov G. Y., Terent’ev A. O., Borisov D. A., Tolstikov A. G., Tolstikov G. A., Adam W. RSC Adv. 2012. Vol. 2. Pp. 107–110.