Elegance and precision are shown in the self-assembly strategy developed by Stoddart, Atwood, and co-workers for the synthesis of molecular Borromean rings. Metal-ion template effects direct the dynamic formation of covalent bonds, which result in the energetically favorable product having the highly symbolic ring motif.
066 Borromean rings: A one-pot synthesis
C. A. Schalley
DOI 10.1002/anie.200460583; 10.1002/ange.200460583