Palladium-Templated Subcomponent Self-Assembly of Macrocycles, Catenanes, and Rotaxanes
Angewandte Chemie International Edition
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Browne, C., Ronson, T., & Nitschke, J. (2014). Palladium-Templated Subcomponent Self-Assembly of Macrocycles, Catenanes, and Rotaxanes. Angewandte Chemie International Edition, 53 10701-10705. https://doi.org/10.1002/anie.201406164
The reaction of 2,6-diformylpyridine with diverse amines and PdII ions gave rise to a variety of metallosupramolecular species, in which the PdII ion is observed to template a tridentate bis(imino)pyridine ligand. These species included a mononuclear complex as well as [2+2] and [3+3] macrocycles. The addition of pyridine-containing macrocyclic capping ligands allows for topological complexity to arise, thereby enabling the straightforward preparation of structures that include a catenane, a rotaxane, and a doubly threaded rotaxane.
catenanes, host–guest systems, rotaxanes, self-assembly, template synthesis
This work was underwritten by the Marie Curie Academic-Industrial Initial Training Network on Dynamic Molecular Nanostructures (DYNAMOL) of the European Union’s Seventh Framework Programme (FP7) and the UK Engineering and Physical Sciences Research Council (EPSRC). We thank the Cambridge Chemistry NMR service for experimental assistance, Diamond Light Source (UK) for synchrotron beamtime on I19 (MT7984), and the EPSRC National Crystallography Service for X-ray data collection.
External DOI: https://doi.org/10.1002/anie.201406164
This record's URL: https://www.repository.cam.ac.uk/handle/1810/252956