Anion binding motifs: topicity and charge in amidocryptands.
An expanded amidocryptand with propyl linkages provides multitopic sites for binding anions and water molecules. Upon quaternization of the two bridgehead amines, the molecular shape changes from an inverted Y to that of a bowl, which is filled with water and topped by the anion.
Kang
Sung Ok
SO
Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA.
Powell
Douglas
D
Bowman-James
Kristin
K