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Palladium-templated subcomponent self-assembly of macrocycles, catenanes, and rotaxanes.


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Authors

Browne, Colm 
Ronson, Tanya K 
Nitschke, Jonathan R 

Abstract

The reaction of 2,6-diformylpyridine with diverse amines and Pd(II) ions gave rise to a variety of metallosupramolecular species, in which the Pd(II) 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 [2]catenane, a [2]rotaxane, and a doubly threaded [3]rotaxane.

Description

Keywords

catenanes, host-guest systems, rotaxanes, self-assembly, template synthesis

Journal Title

Angew Chem Int Ed Engl

Conference Name

Journal ISSN

1433-7851
1521-3773

Volume Title

53

Publisher

Wiley
Sponsorship
Engineering and Physical Sciences Research Council (EP/K039520/1)
Engineering and Physical Sciences Research Council (EP/J001163/1)
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.