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New Poly - and Bis(crown ether)s as Extracting Reagents |
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| Abstract: | Abstract New poly- and bis(crown ether)s containing benzo-15-crown-5 or benzo-18-crown-6 moieties were synthesized as extracting reagents, and by a preliminary solvent extraction of alkali metal picrates the poly- and bis-(crown ether)s were found to extract the cations capable of forming sandwich-type 2:1 complexes more effectively than their monomeric analogs. |
| Keywords: | poly(crown ether) bis(crown ether) solvent extraction alkali metal picrate |