title: A ditopic azacryptate proton cage.
abstract: A tosylated azacryptand readily protonates at the bridgehead amines, becoming a potential ditopic anion receptor. The in-in conformation of the amines facilitates encapsulation of two bromide guests and represents the first structural evidence that a proton cage cryptate can bind two anions internally.
authors.affiliation: Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA.
authors.forename: Paula
authors.initials: P
authors.lastname: Morehouse
authors.forename: Md Alamgir
authors.initials: MA
authors.lastname: Hossain
authors.forename: José M
authors.initials: JM
authors.lastname: Llinares
authors.forename: Douglas
authors.initials: D
authors.lastname: Powell
authors.forename: Kristin
authors.initials: K
authors.lastname: Bowman-James