Chiral Recognition in Bis-Urea-Based Aggregates and Organogels through Cooperative Interactions

Angew Chem Int Ed Engl. 2001 Feb 2;40(3):613-616. doi: 10.1002/1521-3773(20010202)40:3<613::AID-ANIE613>3.0.CO;2-K.

Abstract

Chiral recognition in organogels occurs in the coassembly of the chiral gelator 1 with the chiral guest molecule 2. The diastereomeric aggregates formed from (R,R)-2 with (R,R)-1 or (S,S)-1 were found to be truly different in structure and strength. Cooperativity makes a major contribution to the chiral recognition in this system.

Keywords: aggregation; chirality; cooperative effects; gels.