title: Palladium-templated subcomponent self-assembly of macrocycles, catenanes, and rotaxanes.
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.
authors.affiliation: University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge, CB2 1EW (UK) http://www-jrn.ch.cam.ac.uk/
authors.forename: Colm
authors.initials: C
authors.lastname: Browne
authors.forename: Tanya K
authors.initials: TK
authors.lastname: Ronson
authors.forename: Jonathan R
authors.initials: JR
authors.lastname: Nitschke
keywords: catenanes; host-guest systems; rotaxanes; self-assembly; template synthesis