Researchers achieve aluminum molecular ring-based rotaxane and polyrotaxane - eviltoast
Rotaxanes have garnered interest for their unique structures consisting of mechanically interlocked axles and macrocycles. Numerous organic macrocycles have been employed to construct rotaxanes, including crown ether, cyclobis(paraquat-p-phenylene), calixarene, pillararene, cyclodextrin, and cucurbituril.

barely passed general chemistry. poor memory for arbitrary compound names. invested a lot of cpu cycles in folding@home brute force compound modeling screensaver app. until I realised how much electricity it used.