Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/118059
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Type: | Journal article |
Title: | Hierarchical assembly of an interlocked M₈L₁₆ container |
Other Titles: | Hierarchical assembly of an interlocked M8L16 container |
Author: | Bloch, W. Holstein, J. Dittrich, B. Hiller, W. Clever, G. |
Citation: | Angewandte Chemie International Edition, 2018; 57(19):5534-5538 |
Publisher: | Wiley |
Issue Date: | 2018 |
ISSN: | 1433-7851 1521-3773 |
Statement of Responsibility: | Witold M. Bloch, Julian J. Holstein, Birger Dittrich, Wolf Hiller, and Guido H. Clever |
Abstract: | The self-assembly of eight Pd(II) cations and sixteen phenanthrene-derived bridging ligands with 60° bite angles yielded a novel M₈L₁₆ metallosupramolecular architecture composed of two interlocked D₄h-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. |
Keywords: | Catenanes; interlocked structures; self-assembly; structural transformations; supramolecular chemistry |
Rights: | © 2018 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
DOI: | 10.1002/anie.201800490 |
Published version: | http://dx.doi.org/10.1002/anie.201800490 |
Appears in Collections: | Aurora harvest 3 Chemistry publications |
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hdl_118059.pdf | Published Version | 3.62 MB | Adobe PDF | View/Open |
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