Contribution to the Complexation of some Univalent Metal Cations with p-Tert-Butylcalix[4]arene-Tetrakis(N,N-Diethylacetamide) in Nitrobenzene Saturated with Water-Reference-Cited by-同舟云学术

Contribution to the Complexation of some Univalent Metal Cations with p-Tert-Butylcalix[4]arene-Tetrakis(N,N-Diethylacetamide) in Nitrobenzene Saturated with Water

Published:2011-01-18 Issue:2 Volume:225 Page:271-276
ISSN:2196-7156
Container-title:Zeitschrift für Physikalische Chemie
language:en
Short-container-title:

Author:

Makrlík Emanuel,Budka J.¹,Vaňura Petr²

Affiliation:

1. Institute of Chemical Technology, Prague, Prague 6, Tschechische Republik

2. Institute of Chemical Technology, Prague, Department of Analytical Chemistry, Prague 6, Tschechische Republik

Abstract

Abstract From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+(aq)+NaL+(nb)⇔ML+(nb)+Na+(aq) taking place in the two-phase water-nitrobenzene system (M+=Li+, Ag+, Rb+, Tl+, Cs+; L=p-tert-butylcalix[4]arene-tetrakis(N,N-diethylacetamide); aq=aqueous phase, nb=nitrobenzene phase) were determined. Moreover, the stability constants of the ML+ complexes in water-saturated nitrobenzene were calculated; they were found to increase in the cation order Cs+ < Rb+ < Tl+ < Ag+ < Li+.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Link

https://www.degruyter.com/document/doi/10.1524/zpch.2011.0064/pdf

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