THIAMACROCYCLIC CHEMISTRY - SYNTHESIS OF A NOVEL OXADITHIACROWN AND ITS COPPER IODIDE COMPLEX

A mixed oxa-thia macrocycle incorporating a rigid 'horseshoe-shaped' a romatic moiety, 1,11,21-trioxa-8,14-dithia[2.9.2]paracyclophane, L, ha s been synthesised. The molecular structures of L and of its copper io dide complex have been determined by single-crystal X-ray diffraction methods. There are two independent conformations observed in the solid state for the macrocycle, L. Its copper iodide complex [Cu2I2(L)].1.2 5MeCN, crystallises, in a 2:1 metal:crown ratio, as a one-dimensional infinite array of cubane-like units consisting of four copper atoms, f our iodine atoms and four sulfur atoms from four different macrocycles .