title: Anion complexation by triazolium "ligands": mono- and bis-tridentate complexes of sulfate.
abstract: By utilizing click chemistry and methylation, the triazolium motif was employed to design tridentate "ligands" that bind by electron acception instead of electron donation. As electronically inverted ligands they are able to complex sulfate ions by hydrogen bonding and electrostatic interactions. The formation of mono- or bis-tridentate complexes could be achieved by controlling the degree of methylation with the appropriate reagents and was proven by NMR spectroscopy and computational methods.
authors.affiliation: Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Schulze
authors.forename: Christian
authors.initials: C
authors.lastname: Friebe
authors.forename: Martin D
authors.initials: MD
authors.lastname: Hager
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Günther
authors.forename: Uwe
authors.initials: U
authors.lastname: Köhn
authors.forename: Burkhard O
authors.initials: BO
authors.lastname: Jahn
authors.forename: Helmar
authors.initials: H
authors.lastname: Görls
authors.forename: Ulrich S
authors.initials: US
authors.lastname: Schubert