Copper and nickel complexes of the new phosphadithiamacrocycle 1-phenyl-1-phospha-4,7-dithiacyclononane

Abstract

The novel cyclic ligand 1-phenyl-1-phospha-4-7-dithiacyclononane forms highly stable transition metal and d¹⁰ metal complexes; the X-ray structure of the tetrahedral copper(I) complex shows the ligand to be capable of both facial tridentate coordination and monodentate coordination, and the nickel(II) complex is easily and reversibly converted electrochemically to nickel(I) and nickel(III) complexes.