Supramolecular rotaxane derived architectures

Both ROMP and ADMET have been exploited to generate polyrotaxanes. Rotaxane-derived architectures are desirable in the context of molecular machines and devices. [74] Comprehending the self-assembly behavior of polyrotaxanes [67] and exploiting noncovalent interactions can lead to the integration of internal motion (e.g., translation, rotation, scissor-like motion) within supramolecular polymer frameworks [68]. 

This topic was partially covered in CHEC-II(1996) <1996CHEC-II(9)809> under the subentry Catenanes and Rotaxanes . In this section, emphasis is given to the design and construction (and to some extent, the properties) of supramolecular architectures derived from or incorporating crown ethers rather than to the synthesis of the crown ether component present in them. The crown ether rings described herein are either covalently linked (dendrimers), mechanically interlocked (rotaxanes, catenanes), or just bound by noncovalent interactions (pseudorotaxanes) to the rest of the supermolecule to which they belong. 

---