Abstract
Interpenetrated metal–organic frameworks (MOFs) comprise two or more lattices that are mutually entangled. Interpenetration can be used to tune the structures and pore architectures of MOFs to influence, for example, their stability or interactions with guest molecules. The interpenetrating sublattices are typically identical, but hetero-interpenetrated MOFs, which consist of sublattices that are different from one another, have also been serendipitously produced. Here we describe a strategy for the deliberate synthesis of hetero-interpenetrated MOFs. We use the cubic α-MUF-9 framework as a host sublattice to template the growth of a second sublattice within its pores. Three different secondary sublattices are grown—two of which are not known as standalone MOFs—leading to three different hetero-interpenetrated MOFs. This strategy may serve to combine different properties into one material. We produce an asymmetric catalysis by allocating separate roles to the interpenetrating sublattices in a hetero-interpenetrated MOF: an achiral secondary amine on one sublattice provides the catalytic activity, while the chiral α-MUF-10 host imparts asymmetry to aldol and Henry reactions.
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Data availability
Crystallographic data for the structures reported in this Article have been deposited at the Cambridge Crystallographic Data Centre, under deposition numbers 2144458–2144473 and 2269651 (MUF-91), 2144574–2144588 (MUF-92), 2149445–2149471 and 2269651 (MUF-93) and 2149424–2149437 (rastering files for MUF-93), as detailed in Supplementary Table 1. Copies of the data can be obtained free of charge via https://www.ccdc.cam.ac.uk/structures/. All other data are included in the Supplementary Information. Source data are provided with this article and also available on figshare, https://doi.org/10.6084/m9.figshare.22682965.v2 (ref. 28).
Code availability
The Python scripts are available on figshare at https://doi.org/10.6084/m9.figshare.22682965.v2 (ref. 28).
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Acknowledgements
This research was undertaken in part using the MX2 beamline at the Australian Synchrotron, part of the Australian Nuclear Science and Technology Organisation. We made use of the Australian Cancer Research Foundation detector, partially funded by the New Zealand Group and supported by Massey University. We are grateful to beamline scientists S. Panjikar and J. Price for their expert help. We also thank D. Lun for technical assistance and P. Plieger for guidance on AA spectroscopy. We received no specific funding for this work.
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Contributions
S.G.T. conceived the idea. D.P. developed the concept, conducted experiments, analysed the results and prepared the Supplementary Information. A.F. and S.J.L. conducted experimental work. G.B.J. conceived and advised on the anomalous scattering experiments. S.G.T. and G.B.J. supervised the project. S.G.T. and D.P. wrote the manuscript with contributions from all authors.
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Nature Chemistry thanks Hai-Long Jiang, Hong-Cai Zhou and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
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Supplementary information
Supplementary Information
Supplementary Figs. 1–30, Tables 1–8 and Methods.
Supplementary Data 1
Crystallographic information files (CIFs) for MUF-91 materials, [Zn4O(L1)3] and [Zn4O(bpdc)3]x.
Supplementary Data 2
CIFs for MUF-92 materials, [Zn4O(L1)3] and [Zn4O(bpdc-NH2)3]x.
Supplementary Data 3
CIFs for MUF-93 materials, [Zn4O(L1)3] and [Co4O(bpdc)3]x.
Supplementary Data 4
Rastering CIFs for MUF-93 materials, [Zn4O(L1)3] and [Co4O(bpdc)3]x.
Supplementary Data 5
Crystallographic files for difference datasets using two different wavelengths.
Supplementary Data 6
Source data for Supplementary Figs. 2, 6, 7, 12, 13a, 14, 16, 26, 27, 28 and 30.
Source data
Source Data Fig. 1
Source data for Figs. 1c–e.
Source Data Fig. 3
Source data for Fig. 3.
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Perl, D., Lee, S.J., Ferguson, A. et al. Hetero-interpenetrated metal–organic frameworks. Nat. Chem. 15, 1358–1364 (2023). https://doi.org/10.1038/s41557-023-01277-z
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DOI: https://doi.org/10.1038/s41557-023-01277-z
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