Bistripodand Amide Host for Compartmental Recognition of Multiple Oxyanions

A new benzene-based hexasubstituted bistripodal receptor is synthesized and explored as a new generation receptor for multiple anion binding. The solid state crystal structure showed the encapsulation of four nitrate anions in a bistripodand fashion with “ababab” conformation of the receptor, and upon complexation with acetate anions, the receptor adopted less favorable “aaabbb” conformation with two encapsulated acetate ions.