Abstract:The complexation reactions between K + , Na + , and La 3+ cations and the macrocyclic ligand dibenzo-18-crown-6 (DB18C6) were studied in acetionitrile (AN)-dimethylformamide (DMF) binary mixtures. Also, the complexation of K + and Na + in 50% ethanol (EtOH)-50% DMF and 50% EtOH-50% AN binary mixtures was studied. The conductivity data show that the stochiometry of all the complexes is 1 : 1. A non-linear behavior was observed for the log K f variation vs. composition of binary solvent, which was discussed in t… Show more
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