Chemical Signals Turn On Guest Binding through Structural Reconfiguration of Triangular Helicates


  • This work was supported by the Lundbeck Foundation and the European Research Council. We thank Diamond Light Source (UK) for synchrotron beamtime on I19 (MT7984) and Christopher S. Wood for developing the synthetic procedure of the boronic acid intermediate.


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Be my guest: The function of a system based on self-assembled ZnII complexes can be controlled by external chemical stimuli. The complexes are based on a C3-symmetric ligand that forms a unique triangular triple helicate structure 1. Upon subcomponent substitution, 1 is able to transform into a triangular double helicate 2 which, unlike 1, can encapsulate guests.