Abstract
Template-free molecular Borromean rings (BRs) and open-ended molecular capsules were realized by strategic selection of the polypyridyl ligand tetrapyrido[3,2-a:2',3'-c:3'',2''-h:2''',3'''-j] phenazine (TPPHZ) with a large surface area and specific geometry. The topology of these intricate architectures was constructed via precisely controlled stacking interactions, as evidenced from single-crystal X-ray analysis.
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