Abstract
From extraction experiments with 22Na as a tracer, the extraction constant corresponding to the equilibrium Na+(aq) + A-(aq) + L(nb) ↔ NaL+(nb) + A-(nb) taking place in the two-phase water–nitrobenzene system [A- = picrate, L = p-tert -butylcalix[4]arene-tetrakis(N,N-diethylacetamide); aq = aqueous phase, nb = nitrobenzene phase] was evaluated as log K ex(NaL+, A-) = 4.6± 0.1. Further, the stability constant of the p-tert -butylcalix[4]arene-tetrakis(N,N-diethylacetamide)–sodium complex in nitrobenzene saturated with water was calculated for a temperature of 25 °C: log βnb(NaL+) = 9.8± 0.1.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
