Hierarchical Assembly of an Interlocked M(8) L(16) Container.
Hierarchical Assembly of an Interlocked M(8) L(16) Container.
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DOI:
10.1002/anie.201800490
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发表时间:
2018-05-04
期刊:
影响因子:
--
通讯作者:
Clever GH
中科院分区:
文献类型:
--
作者:
Bloch WM;Holstein JJ;Dittrich B;Hiller W;Clever GH
The self‐assembly of eight PdII cations and sixteen phenanthrene‐derived bridging ligands with 60° bite angles yielded a novel M8L16 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 M3L6 and M4L8 assemblies formed in the presence of BF4 − anions into the same interlocked molecule. Furthermore, the densely packed structure of the M8L16 catenane was exploited in the preparation of a hexyloxy‐functionalized analogue, which further self‐assembled into vesicle‐like aggregates in a reversible manner.
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