Exploiting recognition-mediated assembly and reactivity in [2]rotaxane formation.

Exploiting recognition-mediated assembly and reactivity in [2]rotaxane formation† †Electronic supplementary information (ESI) available: Details of kinetic experiments, computational methods and characterisation data for all compounds are provided. See DOI: 10.1039/c5sc04805b Click here for additional data file.

Nitrate anion templated assembly of a [2]rotaxane for selective nitrate recognition in aqueous solvent mixtures.

The first nitrate anion templated assembly of an interlocked molecular architecture is demonstrated through the preparation of a [2]rotaxane. Removal of the discrete nitrate anion template from the [2]rotaxane reveals an interlocked host system capable of strong and selective recognition of nitrate, in aqueous-organic solvent mixtures, over a range of more basic mono-charged oxoanions.

Self-assembly of [2]rotaxane exploiting reversible Pt(II)- pyridine coordinate bonds.

A dinuclear self-assembled cationic macrocycle based on Pt(II)-N(pyridine) coordinative bonds and having competitive triflate anions, as metal counterions, is used in the construction of [2]rotaxane and [2]pseudorotaxane architectures assisted by hydrogen bonding. The kinetic lability of the Pt(II)-N(pyridine) coordinative bond controls the dynamics of the [2]rotaxane.

Formation of supramolecular isomers; poly[2]rotaxane and supramolecular assembly.

Poly[2]rotaxane and supramolecular assembly have been prepared by modified cyclodextrins bearing an adamantyl group in an aqueous medium.

A Simple and Highly Effective Ligand System for the Copper(I)-Mediated Assembly of Rotaxanes**

A [2]rotaxane was produced through the assembly of a picolinaldehyde, an amine, and a bipyridine macrocycle around a Cu(I) template by imine bond formation in close-to-quantitative yield. An analogous [3]rotaxane is obtained in excellent yield by replacing the amine with a diamine, thus showing the suitability of the system for the construction of higher order interlocked structures. The rotaxa...