Supramolecular architecture of self-adhesive calix[4]arene thiourea derivative by hydrogen bonding and p–p interactions

Two calix[4]arene thiourea derivative 2 and 3 have been prepared by the reaction of the easily accessible 1,3-distally substituted calix[4]arene amine 1 with the corresponding isothiocyanate in dry CH2Cl2 with satisfactory yield. The single crystal of 2 was prepared, and X-ray crystallographic analysis clearly revealed that the interleaving 2D supramolecular architecture formed by synergic hydrogen bonding and p–p interactions. q 2003 Published by Elsevier B.V.