Journal of Radioanalytical and Nuclear Chemistry

, Volume 293, Issue 3, pp 839–842 | Cite as

Solvent extraction of some organic cations into nitrobenzene by using cesium dicarbollylcobaltate in the presence of a hexaarylbenzene-based receptor

  • E. Makrlík
  • P. Selucký
  • P. Vaňura
  • P. Toman
  • R. Rathore


From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium C +(aq) + Cs+(nb) \( \rightleftarrows \) C+(nb) + Cs+(aq) taking place in the two-phase water–nitrobenzene system (C+ = organic cation, 1 = hexaarylbenzene-based receptor; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the C+ cationic complex species in nitrobenzene saturated with water were calculated.


Organic cations Hexaarylbenzene-based receptor Cesium dicarbollylcobaltate Solvent extraction Nitrobenzene 



This work was supported by the Grant Agency of Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Project No.: 42900/1312/3114 “Environmental Aspects of Sustainable Development of Society,” by the Czech Ministry of Education, Youth and Sports, Project MSM 6046137307, and by the Czech Science Foundation, Project P 205/10/2280. Finally, R. R. thanks the National Science Foundation for financial support.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • E. Makrlík
    • 1
  • P. Selucký
    • 2
  • P. Vaňura
    • 3
  • P. Toman
    • 4
  • R. Rathore
    • 5
  1. 1.Faculty of Environmental SciencesCzech University of Life SciencesPrague 6Czech Republic
  2. 2.Nuclear Research InstituteŘežCzech Republic
  3. 3.Department of Analytical ChemistryInstitute of Chemical TechnologyPrague 6Czech Republic
  4. 4.Institute of Macromolecular ChemistryAcademy of Sciences of the Czech RepublicPrague 6Czech Republic
  5. 5.Department of ChemistryMarquette UniversityMilwaukeeUSA

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