Anion-templated assembly of interpenetrated and interlocked structures.
The rational development of a general anion templation strategy for the construction of a variety of interpenetrated and interlocked molecular structures based upon the coupling of anion recognition with ion-pairing is described. The success of this anion templation methodology is demonstrated with the halide anion directed assembly of a series of novel [2]pseudorotaxanes containing pyridinium, pyridinium nicotinamide, imidazolium, benzimidazolium and guanidinium threading components and anion binding macrocyclic ligands. Interlocked [2]rotaxane and [2]catenane molecular structures are also synthesised using this anion templation protocol. These interlocked structures feature unique topologically defined hydrogen bond donating binding domains that exhibit a high degree of selectivity for chloride, the templating anion. A series of rhenium(I) bipyridyl containing [2]pseudorotaxane assemblies and a [2]rotaxane further highlight the potential this strategic anion templation approach has in future chemical sensor design and fabrication.
Beer
Paul D
PD
Inorganic Chemistry Laboratory, South Parks Road, Oxford, UKOX1 3QR. paul.beer@chem.ox.ac.uk
Sambrook
Mark R
MR
Curiel
David
D
D000838:Anions / Q000737:chemistry*; D043863:Catenanes / Q000138:chemical synthesis* / Q000737:chemistry; D019791:Guanidine / Q000138:chemical synthesis / Q000737:chemistry; D007093:Imidazoles / Q000138:chemical synthesis / Q000737:chemistry; D008958:Models, Molecular; D011726:Pyridinium Compounds / Q000138:chemical synthesis / Q000737:chemistry; D012211:Rhenium / Q000737:chemistry; D043862:Rotaxanes / Q000138:chemical synthesis* / Q000737:chemistry
D000838:Anions; D043863:Catenanes; D007093:Imidazoles; D011726:Pyridinium Compounds; D043862:Rotaxanes; D012211:Rhenium; D019791:Guanidine