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Instruments / Technical Area	Publication Details	Published	Actions
B21-High Throughput SAXS I24-Microfocus Macromolecular Crystallography	A diverse array of large capsules transform in response to stimuli Kai Wu , Tanya K. Ronson , Leonard Goh , Weichao Xue , Andrew W. Heard , Pingru Su , Xiaopeng Li , Mladen Vinković , Jonathan R. Nitschke Journal Of The American Chemical Society DOI: 10.1021/jacs.3c02491 Diamond Proposal Number(s): [31323, 31668] Open Access Show Abstract ▼ Abstract: The allosteric regulation of biomolecules, such as enzymes, enables them to adapt and alter their conformation to fit specific substrates, expressing different functionalities in response to stimuli. Different stimuli can also trigger synthetic coordination cages to change their shape, size, and nuclearity by reconfiguring the dynamic metal–ligand bonds that hold them together. Here we demonstrate an abiological system consisting of different organic subcomponents and ZnII metal ions, which can respond to simple stimuli in complex ways. A ZnII20L12 dodecahedron transforms to give a larger ZnII30L12 icosidodecahedron through subcomponent exchange, as an aldehyde that forms bidentate ligands is displaced in favor of one that forms tridentate ligands together with a penta-amine subcomponent. In the presence of a chiral template guest, the same system that produced the icosidodecahedron instead gives a ZnII15L6 truncated rhombohedral architecture through enantioselective self-assembly. Under specific crystallization conditions, a guest induces a further reconfiguration of either the ZnII30L12 or ZnII15L6 cages to yield an unprecedented ZnII20L8 pseudo-truncated octahedral structure. The transformation network of these cages shows how large synthetic hosts can undergo structural adaptation through the application of chemical stimuli, opening pathways to broader applications.	May 2023

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B21-High Throughput SAXS
I24-Microfocus Macromolecular Crystallography

A diverse array of large capsules transform in response to stimuli

Kai Wu , Tanya K. Ronson , Leonard Goh , Weichao Xue , Andrew W. Heard , Pingru Su , Xiaopeng Li , Mladen Vinković , Jonathan R. Nitschke

Journal Of The American Chemical Society

DOI: 10.1021/jacs.3c02491

Diamond Proposal Number(s): [31323, 31668]