THE SYNTHESIS AND CHARACTERIZATION OF A NOVEL vic-DIOXIME AND ITS MONO AND TRINUCLEAR COMPLEXES CARRYING A TRIOXADITHIA MACROCYCLE

Abstract

A new vicinal dioxime, l,15-bis(hydroxyimino)-2,14-dithia-5,8,11-trioxacyclopentadecane (H₂L) was synthesized by the reaction of (E,E)-dichloroglyoxime (1) with 1,11-dithio-3.6.9-trioxaundecane (2). Mononuclear copper(II) complexes with a metal/ligand ratio of 1/2 were prepared. The two ligands coordinate to copper(II) through the deprotonated oximate oxygens which then afford the trinuclear structure bridged by the oximate groups with 1,10-phenan-throline or 2,2′-dipyridyl as the end-cap ligand.