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Formation of Br2 '-, BrSCN'- and (SCN)2'-intermediates in the ionic liquid methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide. Pulse radiolysis study

Treść / Zawartość
Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the XIII Scientific Meeting of the Polish Radiation Research Society, Memorial to Maria Skłodowska-Curie, 13-16 September 2004, Łódź, Poland
Języki publikacji
EN
Abstrakty
EN
The reactions of Br2 '- anion radicals with thiocyanate anions in the ionic liquid methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide (R4NNTf2) were studied by pulse radiolysis. Reaction of solvated electrons with BrCH2CH2Br (DBE), k = (1 2)×108 L.mol 1.s 1, leads to the production of Br2'- anion radicals. The intermediate absorption spectra following pulse radiolysis of DBE/SCN-/Br-/ solutions in R4NNTf2 correspond to Br2 '-, BrSCNo- and (SCN)2'- anion radicals. The participation of these radicals in the spectra changes with progressing reactions and depends on the concentration Br- and SCN- in the solution.
Słowa kluczowe
Czasopismo
Rocznik
Strony
35--38
Opis fizyczny
Bibliogr. 20 poz., rys.
Twórcy
  • Department of Radiation Chemistry and Technology, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22-8112347, Fax: +48 22-8111532
autor
  • Department of Radiation Chemistry and Technology, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22-8112347, Fax: +48 22-8111532
autor
  • Department of Radiation Chemistry and Technology, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22-8112347, Fax: +48 22-8111532
Bibliografia
  • 1. Behar D, Bevan PLT, Scholes G (1972) Pulse radiolysis of aqueous thiocyanate solutions. Nature of the intermediate transient species. J Phys Chem 76:1537–1542
  • 2. Behar D, Gonzales C, Neta P (2001) Reaction kinetics in ionic liquids: Pulse radiolysis studies of 1-butyl-3-methylimidazolium salts. J Phys Chem A 105:7607–7614
  • 3. Behar D, Neta P, Schultheisz C (2002) Reaction kinetics in ionic liquids as studied by pulse radiolysis: Redox reactions in the solvents methyltributylammonium bis(trifluoromethylsulphonyl)imide and N-butylpyridinium tetrafluoroborate. J Phys Chem A 106:3139–3147
  • 4. Earle MJ, Seddon KR (2000) Ionic liquids. Green solvents for the future. Pure Appl Chem 72:1391–1398
  • 5. Grodkowski J, Mirkowski J, Płusa M, Getoff N, Popov P (2004) Pulse radiolysis of diphenyl oxide. Radiat Phys Chem 69:379–386
  • 6. Grodkowski J, Neta P (2002) Formation and reaction of Br2 •– radicals in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide and in other solvents. J Phys Chem A 106:11130–11134
  • 7. Grodkowski J, Neta P (2002) Reaction kinetics in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide. Pulse radiolysis study of •CF3 radical reactions. J Phys Chem A 106:5468–5473
  • 8. Grodkowski J, Neta P (2002) Reaction kinetics in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide. Pulse radiolysis study of 4-mercaptobenzoic acid. J Phys Chem A 106:9030–9035
  • 9. Grodkowski J, Neta P, Wishart JF (2003) Pulse radiolysis study of the reactions of hydrogen atoms in the ionic liquid methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide. J Phys Chem A 107:9794–9799
  • 10. Hug GL (1981) Optical spectra of nonmetallic inorganic transient species in aqueous solution. Nat Stand Ref Data Ser NSRDS-NBS 69
  • 11. Marcinek A, Zielonka J, Gębicki J, Gordon CM, Dunkin IR (2001) Ionic liquids: novel media for characterization of radical ions. J Phys Chem A 105:9305–9309
  • 12. Milosavljevic BH, LaVerne JA (2005) Pulse radiolysis of aqueous thiocyanate solution. J Phys Chem A 109:165–168
  • 13. NDRL/NIST Solution Kinetics Database on the Web. http://kinetics.nist.gov/solution/index.php
  • 14. Neta P, Huie RE, Ross AB (1988) Rate constants for reactions of inorganic radicals in aqueous solution. J Phys Chem Ref Data 17:1027–1284
  • 15. Rogers RD, Seddon KR (eds) (2002) Ionic liquids: industrial application to green chemistry. ACS Symp Ser vol. 818
  • 16. Schöneshöfer M, Henglein A (1969) Pulsradiolytische Untersuchung der Dissoziationsgleichgewichte des gemischten Radikal-Anion-Komplexes BrSCN–. Ber Bunsenges Phys Chem 73:289–293
  • 17. Wasserscheid P, Keim W (2000) Ionic liquids – new “solutions” for transition metal catalysis. Angew Chem Int Ed 39:3772−3789
  • 18. Welton T (1999) Room-temperature ionic liquids. Solvents for synthesis and catalysis. Chem Rev 99:2071–2083
  • 19. Wishart JF, Neta P (2003) Spectrum and reactivity of the solvated electron in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide. J Phys Chem B 107:7261–7267
  • 20. Zimek Z, Dźwigalski Z (1999) Linear electron accelerator. Postępy Techniki Jądrowej 42;2:9–17 (in Polish)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0005-0021
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