Template synthesis of tetrakis-triazolylthiacalix[4]arene in the cone conformation and supramolecular structure of its hexanuclear complex with Ag(I)

Abstract

A stereoselective synthesis of the cone stereoisomer of thiacalix[4]arene bearing four triazolyl coordinating sites at the lower rim, 2, has been achieved by the 1,3-dipolar cycloaddition of p-nitrophenylazide to tetrakis-(propargyloxy) thiacalix[4]arene, 1, in presence of copper(I) iodide. A combination of 2 with AgNO3 leads to the formation of hexanuclear silver(I) complex with M:L ratio of 6:2. The latter forms a 3D π-bonded molecular network in the crystalline phase. © ISUCT Publishing.