Szimmary. The synthesis of the polyaza-polyoxa macrobicyclic ligands 1-4 is described. They form complexes with a variety of metal cations, transition metal cations as well as alkali and alkaline-earth cations. Thcse complexes may be forinulated as cation inclusion complexes, cryptates, in Xvhich the cation is contaiiicd in thc intramolecular cavit!-. The properties of the complexes arc described. An especially interesting feature is that these ...
![4,7,13,16-tetraoxa-1,10,21,24-tetrazabicyclo[8.8.8]hexacosane Structure](https://image.chemsrc.com/caspic/481/39678-12-1.png)
![21,24-bis-(toluene-4-sulfonyl)-4,7,13,16-tetraoxa-1,10,21,24-tetraaza-bicyclo[8.8.8]hexacosane-19,26-dione Structure](https://image.chemsrc.com/caspic/460/39678-08-5.png)
