title: Sulfate anion-templated assembly of a [2]catenane.
abstract: The sulfate anion's templating role in catenane formation is demonstrated for the first time; a novel bis-pyridinium nicotinamide [2]catenane is prepared in a remarkable high yield and is shown to exhibit selectivity for sulfate, the templating anion.
authors.affiliation: Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UKOX1 3QR.
authors.forename: Buqing
authors.initials: B
authors.lastname: Huang
authors.forename: Sergio M
authors.initials: SM
authors.lastname: Santos
authors.forename: Vitor
authors.initials: V
authors.lastname: Felix
authors.forename: Paul D
authors.initials: PD
authors.lastname: Beer