Hydrogen-bonded dimers of tetraurea calix[4]arenes: unambiguous proof by single crystal X-ray analysis
Chemical Communications Pub Date : 01/01/1900 00:00:00 , DOI:10.1039/CC9960002533
Abstract
Self-assembly of calix[4]arenes substituted by four urea residues at the wider rim leads to hydrogen-bonded dimers; the first single crystal X-ray analysis of such a dimer is reported.