Takudrei

125
A Self-Sorting Scheme Based on Tetra-Urea Calix[4]arenes

Y. Rudzevich, V. Rudzevich, F. Klautzsch, C. A. Schalley, V. Böhmer— 2009

Size and shape do matter: When dimerized in nonpolar solvents, an equimolar mixture of eleven tetra-urea calix[4]arenes with different wide-rim substituents self-sorts into only six out of 35 different homo- and heterodimers (see picture). Since the calixarene scaffold and the four urea units are the same in all cases, the self-sorting process is driven only by the cooperative action of steric requirements and stoichiometry.

Title125
A Self-Sorting Scheme Based on Tetra-Urea Calix[4]arenes
AuthorY. Rudzevich, V. Rudzevich, F. Klautzsch, C. A. Schalley, V. Böhmer
Date20090409
IdentifierDOI 10.1002/jms.1616
Source(s)
CitationAngew. Chem. Int. Ed. 2009, 48, 3867-3871; Angew. Chem. 2009, 121, 3925-3929