A Lantern-Shaped Pd(II) Cage Constructed from Four Different Low Symmetry Ligands with Positional and Orientational Control: an Ancillary Pairings Approach

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dc.contributor.authorPreston, D.
dc.contributor.authorEvans, J.D.
dc.date.issued2023
dc.descriptionVersion of record online: October 10, 2023
dc.description.abstractOne of the key challenges of metallosupramolecular chemistry is to maintain the ease of selfassembly but, at the same time, create structures of increasingly high levels of complexity. In palladium(II) quadruply stranded lantern-shaped cages, this has been achieved through either 1) the formation of heteroleptic (multi-ligand) assemblies, or 2) homoleptic assemblies from low-symmetry ligands. Heteroleptic cages formed from low-symmetry ligands, a hybid of these two approaches, would add an additional rich level of complexity but no examples of these have been reported. Here we use a system of ancillary complementary ligand pairings at the termini of cage ligands to target heteroleptic assemblies: these complementary pairs can only interact (through coordination to a single Pd(II) metal ion) between ligands in a cis position on the cage. Complementarity between each pair (and orthogonality to other pairs) is controlled by denticity (tridentate to monodentate or bidentate to bidentate) and/or hydrogen-bonding capability (AA to DD or AD to DA). This allows positional and orientational control over ligands with different ancillary sites. By using this approach, we have successfully used low-symmetry ligands to synthesise complex heteroleptic cages, including an example with four different low-symmetry ligands.
dc.description.statementofresponsibilityDan Preston and Jack D. Evans
dc.identifier.citationAngewandte Chemie International Edition, 2023; 62(49):1-10
dc.identifier.doi10.1002/anie.202314378
dc.identifier.issn1433-7851
dc.identifier.issn1521-3773
dc.identifier.orcidEvans, J.D. [0000-0001-9521-2601]
dc.identifier.urihttps://hdl.handle.net/2440/139870
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/DE200100421
dc.relation.granthttp://purl.org/au-research/grants/arc/DE220100163
dc.rights© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
dc.source.urihttps://doi.org/10.1002/anie.202314378
dc.subjectheteroleptic
dc.subjectlow symmetry
dc.subjectmetallosupramolecular
dc.subjectpalladium(II)
dc.subjectself-assembly
dc.titleA Lantern-Shaped Pd(II) Cage Constructed from Four Different Low Symmetry Ligands with Positional and Orientational Control: an Ancillary Pairings Approach
dc.typeJournal article
pubs.publication-statusPublished

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