https://doi.org/10.1351/goldbook.13974
Macromolecular rotaxane, the structure of which essentially comprises the repetition of a single constitutional unit of the rotaxane type, referred to as the rotaxane constitutional repeating unit, rot-CRU, with all units connected identically with respect to directional sense.
Note: Structure representations of typical regular macromolecular rotaxanes are: 
