Selective Nitrate Binding in Competitive Hydrogen Bonding Solvents: Do Anion-π Interactions Facilitate Nitrate Selectivity?

• Published in: Angewandte Chemie International Edition Vol. 52; no. 39; pp. 10275 - 10280
• Main Authors: Watt, Michelle M., Zakharov, Lev N., Haley, Michael M., Johnson, Darren W.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 23.09.2013; WILEY‐VCH Verlag; Wiley
• Subjects: anion recognition; anion-π interactions; Anions - chemistry; Binding; Chemistry; Chemistry, Multidisciplinary; Halogenation; Halogens - chemistry; host-guest systems; Hydrogen Bonding; Models, Molecular; Nitrates; Nitrates - chemistry; Physical Sciences; Receptors; Science & Technology; Selectivity; Solvents; supramolecular chemistry; Titration; Urea - chemistry; Ureas; anion- interactions; TRANSPORT; DESIGN; host-guest systems; receptors; RECOGNITION; anion recognition; IODINATION; supramolecular chemistry; anion-π interactions

New tripodal urea receptors demonstrate preferential binding of anions over competitive hydrogen bonding solvents. 1H NMR titrations in 10 % [D6]DMSO/CDCl3 show a higher affinity for nitrate over the halides for the fluorinated receptor, which is lost when the fluorine atoms are absent. An anion–π i...