Double armed crown ethers and armed macrocycles as a new series of metal-selective reagents: a review |
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Authors: | Tsukube H |
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Affiliation: | Department of Chemistry, College of Liberal Arts & Science, Okayama University, Okayama, Japan. |
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Abstract: | Various double armed crown ethers and related macrocycles are presented as metal-selective reagents characterized by macrocyclic ligands and metal-ligating sidearms. They exhibit unique metal binding and recognition functions via macroring-sidearm cooperative action. Since they form three dimensional complexes suitable for metal-sensing and separation, we can develop a new series of metal-selective reagents via armed macrocycle strategy. Polymerization and immobilization of the armed macrocycles further enhance the usefulness in analytical science. This review focuses primarily on the molecular design, host-guest chemistry, and analytical applications of the armed macrocycles, and clearly indicates that these macrocycles provide new options in designing a metal-selective reagent. |
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