Hierarchical Assembly of an Interlocked M₈ L₁₆ Container.

ABSTRACT: The self-assembly of eight Pd^II cations and sixteen phenanthrene-derived bridging ligands with 60° bite angles yielded a novel M₈ L₁₆ metallosupramolecular architecture composed of two interlocked D_4h -symmetric barrel-shaped containers. Mass spectrometry, NMR spectroscopy, and X-ray analysis revealed this self-assembled structure to be a very large "Hopf link" catenane featuring channel-like cavities, which are occupied by NO₃^- anions. The importance of the anions as catenation templates became imminent when we observed the nitrate-triggered structural rearrangement of a mixture of M₃ L₆ and M₄ L₈ assemblies formed in the presence of BF₄^- anions into the same

SUBMITTER: Bloch WM 

PROVIDER: S-EPMC5947565 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature