Nitrate Anion Recognition in Organic-Aqueous Solvent Mixtures by a Bis(triazolium)acridine-Containing [2]Rotaxane.
The synthesis of a novel [2]rotaxane host system containing a bis(triazolium)acridine-based axle component is reported. (1)H NMR anion-binding titrations reveal that the rotaxane is able to recognise selectively the NO3(-) anion over a range of more basic oxoanions (AcO(-), HCO3(-) and H2PO4(-)) in a competitive organic-aqueous solvent mixture.
Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK), Fax: (+44) 1865-272690.
Vicente
V
Martí-Centelles
Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK), Fax: (+44) 1865-272690. paul.beer@chem.ox.ac.uk.
Paul D
PD
Beer
acridine; anions; molecular recognition; rotaxanes; supramolecular chemistry