Catenane
Catenanes are interlocked macrocyclic rings. It has potential applications in molecular electronics. The number of interlocked molecules is numbered n. If n is big or many smaller catenanes such as [2]catenane is linked together by a covalent bonds it is called polycatenane. A catenane is a topoisomer of its components, i.e. it is a different topological structure like DNA that has been acted on by topoisomerase.
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