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Synergistic extraction of some divalent metal cations into nitrobenzene by using strontium dicarbollylcobaltate and electroneutral macrocyclic lactam receptor
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SYSNO ASEP 0389452 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synergistic extraction of some divalent metal cations into nitrobenzene by using strontium dicarbollylcobaltate and electroneutral macrocyclic lactam receptor Author(s) Makrlík, E. (CZ)
Sedláková, Zdeňka (UMCH-V) RID, ORCID
Vaňura, P. (CZ)
Selucký, P. (CZ)Source Title Journal of Radioanalytical and Nuclear Chemistry. - : Springer - ISSN 0236-5731
Roč. 295, č. 3 (2013), s. 2263-2266Number of pages 4 s. Language eng - English Country HU - Hungary Keywords divalent metal cations ; macrocyclic lactam receptor ; complexation Subject RIV CD - Macromolecular Chemistry Institutional support UMCH-V - RVO:61389013 UT WOS 000314895400087 DOI 10.1007/s10967-012-2287-8 Annotation From extraction experiments and γ -activity measurements, the exchange extraction constants corresponding to the general equilibrium M2+(aq) + 1.Sr2+(nb) reversible arrow 1.M2+(nb) + Sr2+(aq) taking place in the two-phase water–nitrobenzene system (M2+ = Mg2+, Ca2+, Ba2+, Pb2+, Cu2+, Zn2+, Cd2+, UO 2+ 2, Mn2+, Co2+, Ni2+; 1 = macrocyclic lactam receptor; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Moreover, the stability constants of the 1.M2+ complexes in nitrobenzene saturated with water were calculated; they were found to increase in the following cation order: Mg2+ < Co2+ < Cu2+, Mn2+, Ni2+ < Cd2+ < Ca2+ < Ba2+, Zn2+ < Pb2+ < UO 2+ 2. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2013
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