Solvent extraction of H3O+, NH4+, Ag+, K+, Rb+ and Tl+ into nitrobenzene by using cesium dicarbollylcobaltate in the presence of a hexaarylbenzene-based receptor

0355365 - ÚMCH 2011 RIV HU eng J - Článek v odborném periodiku
Makrlík, E. - Selucký, P. - Vaňura, P. - Toman, Petr - Rathore, R.
Solvent extraction of H3O+, NH4+, Ag+, K+, Rb+ and Tl+ into nitrobenzene by using cesium dicarbollylcobaltate in the presence of a hexaarylbenzene-based receptor.
Journal of Radioanalytical and Nuclear Chemistry. Roč. 287, č. 2 (2011), s. 497-500. ISSN 0236-5731. E-ISSN 1588-2780
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: univalent ions * hexaarylbenzene-based receptor * dicarbollylcobaltate
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 1.520, rok: 2011

From extraction experiments and γ-activity measurements, the extraction constants corresponding to the general equilibrium M+(aq) + 1·Cs+(nb) .rightleftarrows. 1·M+(nb) + Cs+(aq) taking part in the two-phase water–nitrobenzene system (1 = hexaarylbenzene-based receptor; M+ = H3O+, NH4 +, Ag+, K+, Rb+, Tl+; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML+ complex species in nitrobenzene saturated with water were calculated; they were found to increase in the series of Rb+ < K+ < Ag+, Tl+ < H3O+, NH4 +.
Trvalý link: http://hdl.handle.net/11104/0006297