1.
Chemistry
; 8(21): 4946-56, 2002 Nov 04.
Article
in English
| MEDLINE
| ID: mdl-12487131
ABSTRACT
A set of three-armed urea-containing anion receptors was prepared. The receptors all have the same binding topology but differ in the level of conformational preorganization with respect to the arrangement of the side-arms relative to the platform and within the side arms themselves. This is mirrored in a specific increase (x 2.5) in the binding constant for chloride and in a 12-fold increase in the chloride/nitrate-selectivity.