Achievements in Topological and Supramolecular Stereochemistry

The synthetic strategy for the preparation of a molecular Mobius strip, and the results of rung cleavage. 

A THYME polyether that can ring close to make a Mobius strip. 

As suggested in our discussion of supramolecular chemistry in Section 4.3, the facile preparation of complex catenanes and rotaxanes using the various preorganization strategies has led to the consideration of a number of novel stereochemical situations. Topolog- 

A Ks molecule, and a schematic showing the sense that it has the Ks connectivity. 

Supramolecular isomerism in rotaxanes, catenanes, and container compounds. A. Moving along a rotaxane axle can lead to isomerism if there are two different docking stations . B. Similarly, catenanes can exist in isomeric forms if there is structural diversity in one of the rings. C. A conceptualization of isomerism in a container compound. 

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